Keithley 2606B System SourceMeter User manual

Reference Manual
2606B-901-01 Rev. B / May 2018
*P2606B-901-01B*
2606B-901-01B
tek.com/keithley
Model 2606B
System SourceMeter® Instrument

System SourceMeter®Instrument
Reference Manual
© 2018, Keithley Instruments, LLC
Cleveland, Ohio, U.S.A.
All rights reserved.
Any unauthorized reproduction, photocopy, or use of the information herein, in whole or in part,
without the prior written approval of Keithley Instruments, LLC, is strictly prohibited.
These are the original instructions in English.
TSP®, TSP-Link®, and TSP-Net®are trademarks of Keithley Instruments, Inc. All Keithley
Instruments product names are trademarks or registered trademarks of Keithley Instruments, LLC.
Other brand names are trademarks or registered trademarks of their respective holders.
The Lua 5.0 software and associated documentation files are copyright © 1994 - 2015, Lua.org,
PUC-Rio. You can access terms of license for the Lua software and associated documentation at
the Lua licensing site (http://www.lua.org/license.html).
Microsoft, Visual C++, Excel, and Windows are either registered trademarks or trademarks of
Microsoft Corporation in the United States and/or other countries.
Document number: 2606B-901-01Rev. A / February 2018
2606B

Safety precautions
The following safety precautions should be observed before using this product and any associated instrumentation. Although
some instruments and accessories would normally be used with nonhazardous voltages, there are situations where hazardous
conditions may be present.
This product is intended for use by personnel who recognize shock hazards and are familiar with the safety precautions required
to avoid possible injury. Read and follow all installation, operation, and maintenance information carefully before using the
product. Refer to the user documentation for complete product specifications.
If the product is used in a manner not specified, the protection provided by the product warranty may be impaired.
The types of product users are:
Responsible body is the individual or group responsible for the use and maintenance of equipment, for ensuring that the
equipment is operated within its specifications and operating limits, and for ensuring that operators are adequately trained.
Operators use the product for its intended function. They must be trained in electrical safety procedures and proper use of the
instrument. They must be protected from electric shock and contact with hazardous live circuits.
Maintenance personnel perform routine procedures on the product to keep it operating properly, for example, setting the line
voltage or replacing consumable materials. Maintenance procedures are described in the user documentation. The procedures
explicitly state if the operator may perform them. Otherwise, they should be performed only by service personnel.
Service personnel are trained to work on live circuits, perform safe installations, and repair products. Only properly trained
service personnel may perform installation and service procedures.
Keithley products are designed for use with electrical signals that are measurement, control, and data I/O connections, with low
transient overvoltages, and must not be directly connected to mains voltage or to voltage sources with high transient
overvoltages. Measurement Category II (as referenced in IEC 60664) connections require protection for high transient
overvoltages often associated with local AC mains connections. Certain Keithley measuring instruments may be connected to
mains. These instruments will be marked as category II or higher.
Unless explicitly allowed in the specifications, operating manual, and instrument labels, do not connect any instrument to mains.
Exercise extreme caution when a shock hazard is present. Lethal voltage may be present on cable connector jacks or test
fixtures. The American National Standards Institute (ANSI) states that a shock hazard exists when voltage levels greater than
30 V RMS, 42.4 V peak, or 60 VDC are present. A good safety practice is to expect that hazardous voltage is present in any
unknown circuit before measuring.
Operators of this product must be protected from electric shock at all times. The responsible body must ensure that operators
are prevented access and/or insulated from every connection point. In some cases, connections must be exposed to potential
human contact. Product operators in these circumstances must be trained to protect themselves from the risk of electric shock. If
the circuit is capable of operating at or above 1000 V, no conductive part of the circuit may be exposed.
Do not connect switching cards directly to unlimited power circuits. They are intended to be used with impedance-limited
sources. NEVER connect switching cards directly to AC mains. When connecting sources to switching cards, install protective
devices to limit fault current and voltage to the card.
Before operating an instrument, ensure that the line cord is connected to a properly-grounded power receptacle. Inspect the
connecting cables, test leads, and jumpers for possible wear, cracks, or breaks before each use.
When installing equipment where access to the main power cord is restricted, such as rack mounting, a separate main input
power disconnect device must be provided in close proximity to the equipment and within easy reach of the operator.
For maximum safety, do not touch the product, test cables, or any other instruments while power is applied to the circuit under
test. ALWAYS remove power from the entire test system and discharge any capacitors before: connecting or disconnecting
cables or jumpers, installing or removing switching cards, or making internal changes, such as installing or removing jumpers.
Do not touch any object that could provide a current path to the common side of the circuit under test or power line (earth)
ground. Always make measurements with dry hands while standing on a dry, insulated surface capable of withstanding the
voltage being measured.

For safety, instruments and accessories must be used in accordance with the operating instructions. If the instruments or
accessories are used in a manner not specified in the operating instructions, the protection provided by the equipment may be
impaired.
Do not exceed the maximum signal levels of the instruments and accessories. Maximum signal levels are defined in the
specifications and operating information and shown on the instrument panels, test fixture panels, and switching cards.
When fuses are used in a product, replace with the same type and rating for continued protection against fire hazard.
Chassis connections must only be used as shield connections for measuring circuits, NOT as protective earth (safety ground)
connections.
If you are using a test fixture, keep the lid closed while power is applied to the device under test. Safe operation requires the use
of a lid interlock.
If a screw is present, connect it to protective earth (safety ground) using the wire recommended in the user documentation.
The symbol on an instrument means caution, risk of hazard. The user must refer to the operating instructions located in the
user documentation in all cases where the symbol is marked on the instrument.
The symbol on an instrument means warning, risk of electric shock. Use standard safety precautions to avoid personal
contact with these voltages.
The symbol on an instrument shows that the surface may be hot. Avoid personal contact to prevent burns.
The symbol indicates a connection terminal to the equipment frame.
If this symbol is on a product, it indicates that mercury is present in the display lamp. Please note that the lamp must be
properly disposed of according to federal, state, and local laws.
The WARNING heading in the user documentation explains hazards that might result in personal injury or death. Always read
the associated information very carefully before performing the indicated procedure.
The CAUTION heading in the user documentation explains hazards that could damage the instrument. Such damage may
invalidate the warranty.
The CAUTION heading with the symbol in the user documentation explains hazards that could result in moderate or minor
injury or damage the instrument. Always read the associated information very carefully before performing the indicated
procedure. Damage to the instrument may invalidate the warranty.
Instrumentation and accessories shall not be connected to humans.
Before performing any maintenance, disconnect the line cord and all test cables.
To maintain protection from electric shock and fire, replacement components in mains circuits — including the power
transformer, test leads, and input jacks — must be purchased from Keithley. Standard fuses with applicable national safety
approvals may be used if the rating and type are the same. The detachable mains power cord provided with the instrument may
only be replaced with a similarly rated power cord. Other components that are not safety-related may be purchased from other
suppliers as long as they are equivalent to the original component (note that selected parts should be purchased only through
Keithley to maintain accuracy and functionality of the product). If you are unsure about the applicability of a replacement
component, call a Keithley office for information.
Unless otherwise noted in product-specific literature, Keithley instruments are designed to operate indoors only, in the following
environment: Altitude at or below 2,000 m (6,562 ft); temperature 0 °C to 50 °C (32 °F to 122 °F); and pollution degree 1 or 2.
To clean an instrument, use a cloth dampened with deionized water or mild, water-based cleaner. Clean the exterior of the
instrument only. Do not apply cleaner directly to the instrument or allow liquids to enter or spill on the instrument. Products that
consist of a circuit board with no case or chassis (e.g., a data acquisition board for installation into a computer) should never
require cleaning if handled according to instructions. If the board becomes contaminated and operation is affected, the board
should be returned to the factory for proper cleaning/servicing.
Safety precaution revision as of June 2017.

Introduction.................................................................................................................1-1
Welcome.............................................................................................................................. 1-1
Extended warranty............................................................................................................... 1-1
Contact information.............................................................................................................. 1-1
2606B documentation.......................................................................................................... 1-2
Product software and drivers............................................................................................... 1-2
Capabilities and features ..................................................................................................... 1-3
What you should have received........................................................................................... 1-4
Instrument and module serial numbers................................................................................ 1-4
General operation.......................................................................................................2-1
General ratings..................................................................................................................... 2-1
Front panel........................................................................................................................... 2-2
Rear panel............................................................................................................................ 2-3
Channel connector....................................................................................................................2-3
Ground......................................................................................................................................2-3
Line fuse and power receptacle ................................................................................................2-3
Installing the 2606B.............................................................................................................. 2-4
Cooling vents ............................................................................................................................2-4
Dimensions ...............................................................................................................................2-5
Starting up your instrument.................................................................................................. 2-6
Turning the instrument on and off .............................................................................................2-6
Placing the 2606B in standby....................................................................................................2-7
Warmup period..........................................................................................................................2-7
Line frequency configuration.....................................................................................................2-8
Fuse replacement .....................................................................................................................2-8
Remote communications interfaces..................................................................................... 2-8
Remote interface connections...................................................................................................2-9
Output queue ............................................................................................................................2-9
USB communications................................................................................................................2-9
LAN communications ..............................................................................................................2-13
2606B web interface ...............................................................................................................2-15
Supplied software....................................................................................................................2-23
Keithley I/O layer.....................................................................................................................2-26
System information ............................................................................................................ 2-28
Menu overview................................................................................................................... 2-28
Menu navigation......................................................................................................................2-28
Menu trees..............................................................................................................................2-29
Setting a value ........................................................................................................................2-32
Setting source and compliance values....................................................................................2-33
Beeper................................................................................................................................ 2-33
Display mode ..................................................................................................................... 2-34
Basic operation .................................................................................................................. 2-35
Table of contents

Table of contents
2606B System SourceMeter® Instrument
Reference Manual
Source-measure capabilities...................................................................................................2-35
Limits.......................................................................................................................................2-35
Fundamental circuit configurations..........................................................................................2-37
Operation considerations for the ADC.....................................................................................2-37
Basic source-measure procedure ...........................................................................................2-39
Triggering in local mode..........................................................................................................2-43
Configuring for measure-only tests using the MODE key........................................................2-44
V-meter and I-meter measurements .......................................................................................2-45
Ohms measurements..............................................................................................................2-45
Power measurements .............................................................................................................2-48
Contact check measurements.................................................................................................2-50
Saved setups ..........................................................................................................................2-52
DUT test connections......................................................................................................... 2-54
Input/output connectors...........................................................................................................2-54
2-wire local sensing connections.............................................................................................2-57
4-wire remote sensing connections......................................................................................... 2-57
Contact check connections .....................................................................................................2-58
Multiple SMU connections.......................................................................................................2-58
Guarding and shielding ...........................................................................................................2-59
Test fixtures.............................................................................................................................2-62
Floating a SMU .......................................................................................................................2-63
DUT connection settings.................................................................................................... 2-64
Sense mode selection.............................................................................................................2-64
Output-off states...................................................................................................................... 2-65
USB storage overview........................................................................................................ 2-69
Connecting the USB flash drive ..............................................................................................2-70
File system navigation.............................................................................................................2-70
Displayed error and status messages................................................................................ 2-71
Range................................................................................................................................. 2-71
Maximum source values and readings....................................................................................2-71
Measure auto delay.................................................................................................................2-71
Ranging limitations..................................................................................................................2-72
Manual ranging .......................................................................................................................2-72
Autoranging.............................................................................................................................2-72
Low range limits......................................................................................................................2-72
Range considerations .............................................................................................................2-73
Range commands...................................................................................................................2-74
Digits .................................................................................................................................. 2-75
Setting display resolution from the virtual front panel..............................................................2-75
Setting display resolution from a remote interface ..................................................................2-75
Speed................................................................................................................................. 2-76
Setting speed ..........................................................................................................................2-76
Functions and features ..............................................................................................3-1
Relative offset ...................................................................................................................... 3-1
Front panel relative offset..........................................................................................................3-1
Remote relative offset programming .........................................................................................3-2
Filters.................................................................................................................................... 3-3
Filter types.................................................................................................................................3-3
Response time ..........................................................................................................................3-4
Front panel filter control ............................................................................................................3-4
Remote filter programming........................................................................................................3-5
Reading buffers.................................................................................................................... 3-5

2606B
System SourceMeter® Instrument Reference Manual Table
of contents
Front-panel reading buffer control.............................................................................................3-6
Remote reading buffer programming ......................................................................................3-10
Sweep operation................................................................................................................ 3-19
Linear staircase sweeps..........................................................................................................3-20
Logarithmic staircase sweeps.................................................................................................3-22
List sweeps .............................................................................................................................3-25
Pulse mode sweeps................................................................................................................3-26
Configuring and running sweeps.............................................................................................3-27
Sweeping using factory scripts................................................................................................3-28
Sweep programming examples...............................................................................................3-29
Triggering........................................................................................................................... 3-30
Remote triggering overview.....................................................................................................3-30
Using the remote trigger model...............................................................................................3-33
SMU event detectors...............................................................................................................3-36
Using trigger events to start actions on trigger objects............................................................3-38
Digital I/O port and TSP-Link synchronization lines ................................................................3-39
Timers.....................................................................................................................................3-41
Event blenders ........................................................................................................................3-46
LAN triggering overview..........................................................................................................3-48
Command interface triggering.................................................................................................3-49
Trigger generator ....................................................................................................................3-50
Manual triggering ....................................................................................................................3-50
Interactive triggering................................................................................................................3-50
Hardware trigger modes..........................................................................................................3-54
Understanding synchronous triggering modes........................................................................ 3-57
High-capacitance mode ..................................................................................................... 3-61
Understanding high-capacitance mode...................................................................................3-61
Enabling high-capacitance mode ............................................................................................3-63
Display operations.............................................................................................................. 3-66
Display functions and attributes ..............................................................................................3-66
Display features ......................................................................................................................3-67
Display messages...................................................................................................................3-68
Input prompting.......................................................................................................................3-71
Indicators.................................................................................................................................3-73
Local lockout...........................................................................................................................3-74
Load test menu .......................................................................................................................3-74
Running a test from the virtual front panel ..............................................................................3-76
Key-press codes .....................................................................................................................3-76
Digital I/O ........................................................................................................................... 3-78
Port configuration....................................................................................................................3-78
Digital I/O configuration...........................................................................................................3-79
Controlling digital I/O lines.......................................................................................................3-80
Using output enable ................................................................................................................3-81
TSP-Link trigger lines..............................................................................................................3-83
Theory of operation....................................................................................................4-1
Analog-to-digital converter................................................................................................... 4-1
Source-measure concepts................................................................................................... 4-1
Limit principles ..........................................................................................................................4-1
Overheating protection..............................................................................................................4-2
Operating boundaries................................................................................................................4-3
Basic circuit configurations...................................................................................................... 4-12
Guard......................................................................................................................................4-16
Measurement settling time considerations......................................................................... 4-18

Table of contents
2606B System SourceMeter® Instrument
Reference Manual
Effects of load on current source settling time................................................................... 4-19
Creating pulses with the 2606B......................................................................................... 4-19
Pulse rise and fall times ..........................................................................................................4-19
Pulse width..............................................................................................................................4-20
Remote commands.....................................................................................................5-1
Introduction to TSP operation.............................................................................................. 5-1
Controlling the instrument by sending individual command messages.....................................5-1
Queries .....................................................................................................................................5-2
Information on scripting and programming................................................................................5-3
About TSP commands......................................................................................................... 5-3
Beeper control...........................................................................................................................5-3
Bit manipulation and logic operations........................................................................................5-3
Data queue................................................................................................................................5-4
Digital I/O ..................................................................................................................................5-4
Display ......................................................................................................................................5-5
Error queue...............................................................................................................................5-5
Event log...................................................................................................................................5-5
File I/O ......................................................................................................................................5-6
Instrument identification ............................................................................................................5-7
LAN and LXI..............................................................................................................................5-7
Miscellaneous ...........................................................................................................................5-8
Parallel script execution ............................................................................................................5-8
Queries and response messages..............................................................................................5-9
Reading buffer...........................................................................................................................5-9
Reset.......................................................................................................................................5-10
Saved setups ..........................................................................................................................5-10
Scripting.................................................................................................................................. 5-10
SMU........................................................................................................................................5-11
SMU calibration.......................................................................................................................5-12
Status model...........................................................................................................................5-12
Time........................................................................................................................................5-13
Triggering................................................................................................................................5-13
TSP-Link .................................................................................................................................5-15
TSP-Net ..................................................................................................................................5-15
Userstrings..............................................................................................................................5-16
Factory scripts.................................................................................................................... 5-16
Running a factory script ..........................................................................................................5-16
Retrieving and modifying a factory script listing ......................................................................5-17
KISweep factory script ............................................................................................................5-17
KIPulse factory script ..............................................................................................................5-18
KIHighC factory script .............................................................................................................5-20
KIParlib factory script..............................................................................................................5-20
KISavebuffer factory script......................................................................................................5-20
Instrument programming ...........................................................................................6-1
Fundamentals of scripting for TSP....................................................................................... 6-1
What is a script?........................................................................................................................6-2
Run-time and nonvolatile memory storage of scripts ................................................................6-2
What can be included in scripts?...............................................................................................6-2
Commands that cannot be used in scripts ................................................................................6-3
Manage scripts..........................................................................................................................6-3
Working with scripts in nonvolatile memory...............................................................................6-9
Interactive script example .......................................................................................................6-12

2606B
System SourceMeter® Instrument Reference Manual Table
of contents
Fundamentals of programming for TSP............................................................................. 6-13
What is Lua?...........................................................................................................................6-13
Lua basics...............................................................................................................................6-13
Standard libraries....................................................................................................................6-27
Programming example............................................................................................................6-30
Test Script Builder (TSB) ................................................................................................... 6-30
Installing the TSB software......................................................................................................6-30
Installing the TSB add-in.........................................................................................................6-31
Using Test Script Builder (TSB) ..............................................................................................6-31
Project navigator.....................................................................................................................6-32
Script editor.............................................................................................................................6-33
Outline view.............................................................................................................................6-33
Programming interaction......................................................................................................... 6-34
Password management ..................................................................................................... 6-34
Password overview .................................................................................................................6-34
Working with TSB Embedded............................................................................................ 6-36
Sending instrument commands with TSB Embedded .............................................................6-36
Advanced scripting for TSP ............................................................................................... 6-37
Global variables and the script.user.scripts table....................................................................6-37
Create a script using the script.new() command.....................................................................6-38
Rename a script...................................................................................................................... 6-41
Retrieve a user script ..............................................................................................................6-42
Delete user scripts from the instrument...................................................................................6-43
Restore a script to the run-time environment .......................................................................... 6-44
Memory considerations for the run-time environment .............................................................6-44
TSP-Link system expansion interface................................................................................ 6-46
Master and subordinates.........................................................................................................6-46
TSP-Link nodes.......................................................................................................................6-47
Connections............................................................................................................................6-47
Initialization .............................................................................................................................6-48
Resetting the TSP-Link network..............................................................................................6-48
Using the expanded system....................................................................................................6-49
TSP advanced features...........................................................................................................6-50
Using groups to manage nodes on TSP-Link network ............................................................6-53
Running simultaneous test scripts...........................................................................................6-54
Using the data queue for real-time communication.................................................................6-55
Copying test scripts across the TSP-Link network ..................................................................6-55
Removing stale values from the reading buffer cache ............................................................6-56
TSP-Net ............................................................................................................................. 6-56
TSP-Net capabilities................................................................................................................6-56
Using TSP-Net with any ethernet-enabled instrument ............................................................6-57
TSP-Net compared to TSP-Link to communicate with TSP-enabled devices .........................6-59
TSP-Net instrument commands: General device control ........................................................6-59
TSP-Net instrument commands: TSP-enabled device control ................................................6-59
Example: Using tspnet commands..........................................................................................6-60
TSP command reference............................................................................................7-1
TSP command programming notes..................................................................................... 7-1
Placeholder text ........................................................................................................................7-1
Syntax rules ..............................................................................................................................7-2
Time and date values................................................................................................................7-3
Using the TSP command reference..................................................................................... 7-3
Command name and summary table ........................................................................................7-4
Command usage.......................................................................................................................7-5

Table of contents
2606B System SourceMeter® Instrument
Reference Manual
Command details......................................................................................................................7-5
Example section........................................................................................................................7-6
Related commands and information..........................................................................................7-6
TSP commands.................................................................................................................... 7-7
beeper.beep()............................................................................................................................7-7
beeper.enable...........................................................................................................................7-8
bit.bitand().................................................................................................................................7-8
bit.bitor()....................................................................................................................................7-9
bit.bitxor()..................................................................................................................................7-9
bit.clear().................................................................................................................................7-10
bit.get()....................................................................................................................................7-11
bit.getfield() .............................................................................................................................7-11
bit.set()....................................................................................................................................7-12
bit.setfield()..............................................................................................................................7-13
bit.test()...................................................................................................................................7-14
bit.toggle()...............................................................................................................................7-14
bufferVar.appendmode ...........................................................................................................7-15
bufferVar.basetimestamp........................................................................................................7-16
bufferVar.cachemode..............................................................................................................7-17
bufferVar.capacity ...................................................................................................................7-18
bufferVar.clear()......................................................................................................................7-19
bufferVar.clearcache().............................................................................................................7-19
bufferVar.collectsourcevalues.................................................................................................7-20
bufferVar.collecttimestamps....................................................................................................7-21
bufferVar.fillcount ....................................................................................................................7-22
bufferVar.fillmode....................................................................................................................7-22
bufferVar.measurefunctions....................................................................................................7-23
bufferVar.measureranges........................................................................................................7-24
bufferVar.n ..............................................................................................................................7-25
bufferVar.readings...................................................................................................................7-26
bufferVar.sourcefunctions .......................................................................................................7-27
bufferVar.sourceoutputstates..................................................................................................7-28
bufferVar.sourceranges...........................................................................................................7-29
bufferVar.sourcevalues ...........................................................................................................7-30
bufferVar.statuses...................................................................................................................7-31
bufferVar.timestampresolution ................................................................................................7-32
bufferVar.timestamps..............................................................................................................7-33
ConfigPulseIMeasureV().........................................................................................................7-34
ConfigPulseIMeasureVSweepLin() .........................................................................................7-35
ConfigPulseIMeasureVSweepLog() ........................................................................................7-38
ConfigPulseVMeasureI()......................................................................................................... 7-40
ConfigPulseVMeasureISweepLin() .........................................................................................7-42
ConfigPulseVMeasureISweepLog() ........................................................................................7-44
dataqueue.add()......................................................................................................................7-46
dataqueue.CAPACITY ............................................................................................................7-47
dataqueue.clear()....................................................................................................................7-47
dataqueue.count .....................................................................................................................7-48
dataqueue.next().....................................................................................................................7-49
delay().....................................................................................................................................7-50
digio.readbit().......................................................................................................................... 7-50
digio.readport()........................................................................................................................7-51
digio.trigger[N].assert()............................................................................................................ 7-52
digio.trigger[N].clear()..............................................................................................................7-52
digio.trigger[N].EVENT_ID ......................................................................................................7-53
digio.trigger[N].mode...............................................................................................................7-53
digio.trigger[N].overrun............................................................................................................7-55
digio.trigger[N].pulsewidth.......................................................................................................7-55
digio.trigger[N].release()..........................................................................................................7-56
digio.trigger[N].reset() .............................................................................................................7-56
digio.trigger[N].stimulus........................................................................................................... 7-57

2606B
System SourceMeter® Instrument Reference Manual Table
of contents
digio.trigger[N].wait()...............................................................................................................7-59
digio.writebit()..........................................................................................................................7-59
digio.writeport() .......................................................................................................................7-60
digio.writeprotect.....................................................................................................................7-61
display.clear()..........................................................................................................................7-61
display.getannunciators()........................................................................................................7-62
display.getcursor()...................................................................................................................7-63
display.getlastkey() .................................................................................................................7-64
display.gettext().......................................................................................................................7-65
display.inputvalue() .................................................................................................................7-66
display.loadmenu.add()...........................................................................................................7-68
display.loadmenu.catalog() .....................................................................................................7-69
display.loadmenu.delete().......................................................................................................7-70
display.locallockout .................................................................................................................7-70
display.menu()......................................................................................................................... 7-71
display.numpad.......................................................................................................................7-71
display.prompt() ......................................................................................................................7-72
display.screen.........................................................................................................................7-74
display.sendkey() ....................................................................................................................7-74
display.setcursor()...................................................................................................................7-75
display.settext().......................................................................................................................7-76
display.smuX.digits .................................................................................................................7-77
display.smuX.limit.func............................................................................................................ 7-78
display.smuX.measure.func....................................................................................................7-79
display.trigger.clear()...............................................................................................................7-79
display.trigger.EVENT_ID .......................................................................................................7-80
display.trigger.overrun.............................................................................................................7-80
display.trigger.wait()................................................................................................................7-81
display.waitkey()......................................................................................................................7-81
errorqueue.clear() ...................................................................................................................7-83
errorqueue.count.....................................................................................................................7-83
errorqueue.next() ....................................................................................................................7-84
eventlog.all()............................................................................................................................7-85
eventlog.clear() .......................................................................................................................7-86
eventlog.count.........................................................................................................................7-86
eventlog.enable.......................................................................................................................7-87
eventlog.next() ........................................................................................................................7-87
eventlog.overwritemethod.......................................................................................................7-88
exit()........................................................................................................................................7-89
fileVar:close()..........................................................................................................................7-89
fileVar:flush()........................................................................................................................... 7-90
fileVar:read() ...........................................................................................................................7-90
fileVar:seek()...........................................................................................................................7-91
fileVar:write()...........................................................................................................................7-92
format.asciiprecision ...............................................................................................................7-92
format.byteorder......................................................................................................................7-93
format.data..............................................................................................................................7-94
fs.chdir().................................................................................................................................. 7-95
fs.cwd() ...................................................................................................................................7-96
fs.is_dir() .................................................................................................................................7-96
fs.is_file().................................................................................................................................7-96
fs.mkdir().................................................................................................................................7-97
fs.readdir()...............................................................................................................................7-97
fs.rmdir()..................................................................................................................................7-98
gettimezone() ..........................................................................................................................7-98
gm_isweep()............................................................................................................................7-99
gm_vsweep().........................................................................................................................7-100
i_leakage_measure() ............................................................................................................7-100
i_leakage_threshold()............................................................................................................7-102
InitiatePulseTest() .................................................................................................................7-103
InitiatePulseTestDual().......................................................................................................... 7-105

Table of contents
2606B System SourceMeter® Instrument
Reference Manual
io.close()................................................................................................................................ 7-107
io.flush() ................................................................................................................................7-107
io.input()................................................................................................................................ 7-108
io.open()................................................................................................................................ 7-109
io.output()..............................................................................................................................7-109
io.read().................................................................................................................................7-110
io.type().................................................................................................................................7-111
io.write() ................................................................................................................................7-111
lan.applysettings()................................................................................................................. 7-112
lan.autoconnect.....................................................................................................................7-112
lan.config.dns.address[N]......................................................................................................7-113
lan.config.dns.domain ...........................................................................................................7-114
lan.config.dns.dynamic..........................................................................................................7-114
lan.config.dns.hostname .......................................................................................................7-115
lan.config.dns.verify ..............................................................................................................7-116
lan.config.duplex...................................................................................................................7-116
lan.config.gateway ................................................................................................................7-117
lan.config.ipaddress ..............................................................................................................7-117
lan.config.method..................................................................................................................7-118
lan.config.speed....................................................................................................................7-118
lan.config.subnetmask ..........................................................................................................7-119
lan.linktimeout.......................................................................................................................7-120
lan.lxidomain.........................................................................................................................7-120
lan.nagle ...............................................................................................................................7-121
lan.reset()..............................................................................................................................7-121
lan.restoredefaults() ..............................................................................................................7-122
lan.status.dns.address[N]......................................................................................................7-122
lan.status.dns.name..............................................................................................................7-123
lan.status.duplex...................................................................................................................7-124
lan.status.gateway ................................................................................................................7-124
lan.status.ipaddress ..............................................................................................................7-125
lan.status.macaddress ..........................................................................................................7-125
lan.status.port.dst..................................................................................................................7-126
lan.status.port.rawsocket ......................................................................................................7-126
lan.status.port.telnet..............................................................................................................7-127
lan.status.port.vxi11 ..............................................................................................................7-127
lan.status.speed....................................................................................................................7-128
lan.status.subnetmask ..........................................................................................................7-128
lan.timedwait.........................................................................................................................7-129
lan.trigger[N].assert() ............................................................................................................7-129
lan.trigger[N].clear() .............................................................................................................. 7-130
lan.trigger[N].connect()..........................................................................................................7-130
lan.trigger[N].connected........................................................................................................7-131
lan.trigger[N].disconnect().....................................................................................................7-132
lan.trigger[N].EVENT_ID.......................................................................................................7-132
lan.trigger[N].ipaddress......................................................................................................... 7-133
lan.trigger[N].mode................................................................................................................7-133
lan.trigger[N].overrun ............................................................................................................ 7-134
lan.trigger[N].protocol............................................................................................................7-135
lan.trigger[N].pseudostate.....................................................................................................7-136
lan.trigger[N].stimulus ...........................................................................................................7-136
lan.trigger[N].wait()................................................................................................................7-138
localnode.autolinefreq...........................................................................................................7-138
localnode.description ............................................................................................................7-139
localnode.linefreq..................................................................................................................7-140
localnode.model.................................................................................................................... 7-140
localnode.password ..............................................................................................................7-141
localnode.passwordmode ..................................................................................................... 7-141
localnode.prompts.................................................................................................................7-142
localnode.prompts4882.........................................................................................................7-143
localnode.reset() ...................................................................................................................7-144

2606B
System SourceMeter® Instrument Reference Manual Table
of contents
localnode.revision .................................................................................................................7-144
localnode.serialno .................................................................................................................7-145
localnode.showerrors............................................................................................................7-145
makegetter()..........................................................................................................................7-146
makesetter()..........................................................................................................................7-147
meminfo()..............................................................................................................................7-147
node[N].execute()..................................................................................................................7-148
node[N].getglobal()................................................................................................................7-149
node[N].setglobal()................................................................................................................7-149
opc()......................................................................................................................................7-150
os.remove()...........................................................................................................................7-150
os.rename()...........................................................................................................................7-151
os.time()................................................................................................................................ 7-151
print().....................................................................................................................................7-152
printbuffer()............................................................................................................................7-153
printnumber().........................................................................................................................7-154
PulseIMeasureV() .................................................................................................................7-155
PulseVMeasureI() .................................................................................................................7-156
QueryPulseConfig()...............................................................................................................7-157
reset()....................................................................................................................................7-159
savebuffer()...........................................................................................................................7-159
script.anonymous..................................................................................................................7-160
script.delete() ........................................................................................................................7-161
script.factory.catalog()...........................................................................................................7-161
script.load() ...........................................................................................................................7-162
script.new()............................................................................................................................7-163
script.newautorun() ...............................................................................................................7-164
script.restore().......................................................................................................................7-164
script.run().............................................................................................................................7-165
script.user.catalog()...............................................................................................................7-165
scriptVar.autorun...................................................................................................................7-166
scriptVar.list()........................................................................................................................7-167
scriptVar.name......................................................................................................................7-167
scriptVar.run() .......................................................................................................................7-168
scriptVar.save().....................................................................................................................7-169
scriptVar.source....................................................................................................................7-170
settime()................................................................................................................................ 7-170
settimezone() ........................................................................................................................7-171
setup.poweron.......................................................................................................................7-172
setup.recall() .........................................................................................................................7-173
setup.save() ..........................................................................................................................7-174
smuX.abort() ......................................................................................................................... 7-174
smuX.buffer.getstats()...........................................................................................................7-175
smuX.buffer.recalculatestats()...............................................................................................7-176
smuX.cal.adjustdate..............................................................................................................7-177
smuX.cal.date .......................................................................................................................7-178
smuX.cal.due ........................................................................................................................7-179
smuX.cal.lock()......................................................................................................................7-180
smuX.cal.password...............................................................................................................7-180
smuX.cal.polarity...................................................................................................................7-181
smuX.cal.restore().................................................................................................................7-182
smuX.cal.save() ....................................................................................................................7-183
smuX.cal.state.......................................................................................................................7-183
smuX.cal.unlock().................................................................................................................. 7-184
smuX.contact.calibratehi().....................................................................................................7-185
smuX.contact.calibratelo().....................................................................................................7-186
smuX.contact.check()............................................................................................................7-187
smuX.contact.r()....................................................................................................................7-188
smuX.contact.speed..............................................................................................................7-189
smuX.contact.threshold.........................................................................................................7-190
smuX.makebuffer()................................................................................................................7-191

Table of contents
2606B System SourceMeter® Instrument
Reference Manual
smuX.measure.autorangeY...................................................................................................7-191
smuX.measure.autozero....................................................................................................... 7-192
smuX.measure.calibrateY()...................................................................................................7-194
smuX.measure.count ............................................................................................................7-195
smuX.measure.delay ............................................................................................................7-196
smuX.measure.delayfactor....................................................................................................7-197
smuX.measure.filter.count ....................................................................................................7-197
smuX.measure.filter.enable...................................................................................................7-198
smuX.measure.filter.type ......................................................................................................7-199
smuX.measure.highcrangedelayfactor..................................................................................7-200
smuX.measure.interval .........................................................................................................7-200
smuX.measure.lowrangeY....................................................................................................7-201
smuX.measure.nplc ..............................................................................................................7-202
smuX.measure.overlappedY()............................................................................................... 7-203
smuX.measure.rangeY .........................................................................................................7-204
smuX.measure.rel.enableY...................................................................................................7-205
smuX.measure.rel.levelY ......................................................................................................7-206
smuX.measure.Y()................................................................................................................7-207
smuX.measureYandstep() .................................................................................................... 7-208
smuX.nvbufferY.....................................................................................................................7-209
smuX.reset()..........................................................................................................................7-210
smuX.savebuffer().................................................................................................................7-210
smuX.sense ..........................................................................................................................7-211
smuX.source.autorangeY......................................................................................................7-212
smuX.source.calibrateY()......................................................................................................7-213
smuX.source.compliance......................................................................................................7-214
smuX.source.delay................................................................................................................7-214
smuX.source.func .................................................................................................................7-215
smuX.source.highc................................................................................................................7-216
smuX.source.levelY ..............................................................................................................7-217
smuX.source.limitY ...............................................................................................................7-218
smuX.source.lowrangeY .......................................................................................................7-219
smuX.source.offfunc .............................................................................................................7-220
smuX.source.offlimitY ...........................................................................................................7-220
smuX.source.offmode ...........................................................................................................7-221
smuX.source.output ..............................................................................................................7-222
smuX.source.outputenableaction..........................................................................................7-223
smuX.source.rangeY.............................................................................................................7-224
smuX.source.settling.............................................................................................................7-225
smuX.trigger.arm.count.........................................................................................................7-226
smuX.trigger.arm.set() ..........................................................................................................7-226
smuX.trigger.arm.stimulus.....................................................................................................7-227
smuX.trigger.ARMED_EVENT_ID ........................................................................................7-229
smuX.trigger.autoclear..........................................................................................................7-229
smuX.trigger.count................................................................................................................ 7-230
smuX.trigger.endpulse.action................................................................................................7-230
smuX.trigger.endpulse.set()..................................................................................................7-231
smuX.trigger.endpulse.stimulus ............................................................................................7-232
smuX.trigger.endsweep.action..............................................................................................7-233
smuX.trigger.IDLE_EVENT_ID .............................................................................................7-234
smuX.trigger.initiate()............................................................................................................7-234
smuX.trigger.measure.action ................................................................................................7-235
smuX.trigger.measure.set()...................................................................................................7-236
smuX.trigger.measure.stimulus.............................................................................................7-237
smuX.trigger.measure.Y().....................................................................................................7-238
smuX.trigger.MEASURE_COMPLETE_EVENT_ID..............................................................7-239
smuX.trigger.PULSE_COMPLETE_EVENT_ID....................................................................7-239
smuX.trigger.source.action....................................................................................................7-240
smuX.trigger.source.limitY ....................................................................................................7-241
smuX.trigger.source.limitY ....................................................................................................7-242
smuX.trigger.source.linearY()................................................................................................7-243

2606B
System SourceMeter® Instrument Reference Manual Table
of contents
smuX.trigger.source.listY()....................................................................................................7-244
smuX.trigger.source.logY()....................................................................................................7-245
smuX.trigger.source.set()......................................................................................................7-246
smuX.trigger.source.stimulus................................................................................................7-247
smuX.trigger.SOURCE_COMPLETE_EVENT_ID ................................................................7-248
smuX.trigger.SWEEP_COMPLETE_EVENT_ID...................................................................7-249
smuX.trigger.SWEEPING_EVENT_ID..................................................................................7-249
status.condition.....................................................................................................................7-250
status.measurement.* ...........................................................................................................7-252
status.measurement.buffer_available.*.................................................................................7-254
status.measurement.current_limit.*.......................................................................................7-255
status.measurement.instrument.*..........................................................................................7-257
status.measurement.instrument.smuX.* ...............................................................................7-258
status.measurement.reading_overflow.*...............................................................................7-260
status.measurement.voltage_limit.* ...................................................................................... 7-262
status.node_enable...............................................................................................................7-263
status.node_event.................................................................................................................7-265
status.operation.* ..................................................................................................................7-266
status.operation.calibrating.*.................................................................................................7-268
status.operation.instrument.*.................................................................................................7-270
status.operation.instrument.digio.*........................................................................................7-272
status.operation.instrument.digio.trigger_overrun.*...............................................................7-274
status.operation.instrument.lan.*...........................................................................................7-276
status.operation.instrument.lan.trigger_overrun.*..................................................................7-278
status.operation.instrument.smuX.* ...................................................................................... 7-280
status.operation.instrument.smuX.trigger_overrrun.*............................................................7-282
status.operation.instrument.trigger_blender.*........................................................................7-285
status.operation.instrument.trigger_blender.trigger_overrun.* ..............................................7-286
status.operation.instrument.trigger_timer.* ...........................................................................7-288
status.operation.instrument.trigger_timer.trigger_overrun.* ..................................................7-289
status.operation.instrument.tsplink.* .....................................................................................7-292
status.operation.instrument.tsplink.trigger_overrun.* ............................................................7-293
status.operation.measuring.*................................................................................................. 7-295
status.operation.remote.*......................................................................................................7-296
status.operation.sweeping.*..................................................................................................7-297
status.operation.trigger_overrun.*.........................................................................................7-299
status.operation.user.* ..........................................................................................................7-301
status.questionable.*.............................................................................................................7-303
status.questionable.*.............................................................................................................7-305
status.questionable.calibration.*............................................................................................7-307
status.questionable.instrument.*...........................................................................................7-308
status.questionable.instrument.smuX.*.................................................................................7-310
status.questionable.over_temperature.*................................................................................7-312
status.questionable.unstable_output.* ..................................................................................7-313
status.request_enable...........................................................................................................7-314
status.request_event.............................................................................................................7-316
status.reset().........................................................................................................................7-318
status.standard.*...................................................................................................................7-318
status.system.*......................................................................................................................7-321
status.system2.*....................................................................................................................7-323
status.system3.*....................................................................................................................7-325
status.system4.*....................................................................................................................7-327
status.system5.*....................................................................................................................7-329
SweepILinMeasureV()...........................................................................................................7-331
SweepIListMeasureV()..........................................................................................................7-332
SweepILogMeasureV() .........................................................................................................7-333
SweepVLinMeasureI()...........................................................................................................7-335
SweepVListMeasureI()..........................................................................................................7-336
SweepVLogMeasureI() .........................................................................................................7-337
timer.measure.t()...................................................................................................................7-338
timer.reset()...........................................................................................................................7-339

Table of contents
2606B System SourceMeter® Instrument
Reference Manual
trigger.blender[N].clear() .......................................................................................................7-340
trigger.blender[N].EVENT_ID................................................................................................7-340
trigger.blender[N].orenable....................................................................................................7-341
trigger.blender[N].overrun .....................................................................................................7-341
trigger.blender[N].reset().......................................................................................................7-342
trigger.blender[N].stimulus[M] ...............................................................................................7-343
trigger.blender[N].wait()......................................................................................................... 7-344
trigger.clear().........................................................................................................................7-345
trigger.EVENT_ID .................................................................................................................7-346
trigger.generator[N].assert()..................................................................................................7-346
trigger.generator[N].EVENT_ID.............................................................................................7-347
trigger.timer[N].clear() ...........................................................................................................7-347
trigger.timer[N].count.............................................................................................................7-348
trigger.timer[N].delay.............................................................................................................7-348
trigger.timer[N].delaylist ........................................................................................................7-349
trigger.timer[N].EVENT_ID....................................................................................................7-350
trigger.timer[N].overrun .........................................................................................................7-350
trigger.timer[N].passthrough..................................................................................................7-351
trigger.timer[N].reset()...........................................................................................................7-352
trigger.timer[N].stimulus ........................................................................................................7-352
trigger.timer[N].wait().............................................................................................................7-354
trigger.wait()..........................................................................................................................7-354
tsplink.group..........................................................................................................................7-355
tsplink.master........................................................................................................................ 7-356
tsplink.node...........................................................................................................................7-356
tsplink.readbit()......................................................................................................................7-357
tsplink.readport() ...................................................................................................................7-357
tsplink.reset()......................................................................................................................... 7-358
tsplink.state...........................................................................................................................7-359
tsplink.trigger[N].assert().......................................................................................................7-359
tsplink.trigger[N].clear().........................................................................................................7-360
tsplink.trigger[N].EVENT_ID..................................................................................................7-360
tsplink.trigger[N].mode ..........................................................................................................7-361
tsplink.trigger[N].overrun.......................................................................................................7-362
tsplink.trigger[N].pulsewidth ..................................................................................................7-363
tsplink.trigger[N].release().....................................................................................................7-363
tsplink.trigger[N].reset().........................................................................................................7-364
tsplink.trigger[N].stimulus......................................................................................................7-365
tsplink.trigger[N].wait() ..........................................................................................................7-366
tsplink.writebit().....................................................................................................................7-367
tsplink.writeport()...................................................................................................................7-367
tsplink.writeprotect ................................................................................................................7-368
tspnet.clear().........................................................................................................................7-369
tspnet.connect() ....................................................................................................................7-369
tspnet.disconnect()................................................................................................................7-371
tspnet.execute() ....................................................................................................................7-371
tspnet.idn()............................................................................................................................7-372
tspnet.read()..........................................................................................................................7-373
tspnet.readavailable()............................................................................................................7-374
tspnet.reset().........................................................................................................................7-375
tspnet.termination() ...............................................................................................................7-375
tspnet.timeout........................................................................................................................7-376
tspnet.tsp.abort()...................................................................................................................7-377
tspnet.tsp.abortonconnect.....................................................................................................7-377
tspnet.tsp.rbtablecopy().........................................................................................................7-378
tspnet.tsp.runscript() ............................................................................................................. 7-379
tspnet.write() .........................................................................................................................7-380
userstring.add().....................................................................................................................7-380
userstring.catalog() ...............................................................................................................7-381
userstring.delete() .................................................................................................................7-382
userstring.get()......................................................................................................................7-382

2606B
System SourceMeter® Instrument Reference Manual Table
of contents
waitcomplete().......................................................................................................................7-383
Troubleshooting guide...............................................................................................8-1
Introduction .......................................................................................................................... 8-1
Error levels........................................................................................................................... 8-1
Effects of errors on scripts ................................................................................................... 8-1
Retrieving errors................................................................................................................... 8-2
Error summary list................................................................................................................ 8-2
LAN troubleshooting suggestions........................................................................................ 8-6
Frequently asked questions ......................................................................................9-1
How do I find the serial number?......................................................................................... 9-1
How do I optimize performance?......................................................................................... 9-1
Disabling autozero to increase speed .......................................................................................9-2
How do I upgrade the firmware?.......................................................................................... 9-2
How do I use the digital I/O port?......................................................................................... 9-2
How do I make contact check measurements?................................................................... 9-2
How can I change the line frequency or voltage?................................................................ 9-2
How do I trigger other instruments?..................................................................................... 9-3
Triggering a scanner .................................................................................................................9-3
Interactive trigger programming ................................................................................................9-3
More information about triggering .............................................................................................9-3
How do I store measurements in nonvolatile memory?....................................................... 9-4
When should I change the output-off state?........................................................................ 9-4
Where can I get the LabVIEW driver? ................................................................................. 9-5
Why is the reading value 9.91e37?...................................................................................... 9-5
Next steps..................................................................................................................10-1
Additional 2606B information............................................................................................. 10-1
Maintenance................................................................................................................A-1
Introduction ..........................................................................................................................A-1
Line fuse replacement..........................................................................................................A-1
Upgrading the firmware........................................................................................................A-2
Using TSB to upgrade the firmware..........................................................................................A-3
Calibration...................................................................................................................B-1
Verification ...........................................................................................................................B-1
Verification test requirements....................................................................................................B-2
Restoring factory defaults .........................................................................................................B-4
Performing the verification test procedures...............................................................................B-4

Table of contents
2606B System SourceMeter® Instrument
Reference Manual
Current source accuracy...........................................................................................................B-6
Current measurement accuracy................................................................................................B-7
Voltage source accuracy...........................................................................................................B-9
Voltage measurement accuracy..............................................................................................B-10
Adjustment.........................................................................................................................B-10
Environmental conditions........................................................................................................B-11
Adjustment considerations......................................................................................................B-11
Calibration adjustment overview .............................................................................................B-13
Calibration commands quick reference...................................................................................B-15
Calibration adjustment procedure ...........................................................................................B-16
LAN concepts and settings........................................................................................C-1
Overview..............................................................................................................................C-1
Install the crossover cable ...................................................................................................C-2
Connecting to the LAN.........................................................................................................C-2
Set the IP address to be set automatically................................................................................C-3
Set the LAN configuration to Manual.........................................................................................C-3
Configuring the domain name system (DNS)............................................................................C-4
Establishing a point-to-point connection..............................................................................C-5
LAN speeds..........................................................................................................................C-6
Duplex mode........................................................................................................................C-7
Viewing LAN status messages ............................................................................................C-7
Viewing the network settings ...............................................................................................C-8
Confirming the active speed and duplex negotiation.................................................................C-8
Confirming port numbers...........................................................................................................C-8
Selecting a LAN interface protocol.......................................................................................C-9
VXI-11 connection.....................................................................................................................C-9
Raw socket connection .............................................................................................................C-9
Dead socket connection............................................................................................................C-9
Telnet connection....................................................................................................................C-10
Logging LAN trigger events in the event log......................................................................C-10
Accessing the event log from the command interface.............................................................C-12
Common commands ..................................................................................................D-1
Command summary.............................................................................................................D-1
Script command equivalents................................................................................................D-3
Command reference ............................................................................................................D-3
Identification query: *IDN?.........................................................................................................D-3
Operation complete and query: *OPC and *OPC?....................................................................D-4
Reset: *RST..............................................................................................................................D-4
Self-test query: *TST?...............................................................................................................D-4
Trigger: *TRG............................................................................................................................D-4
Wait-to-continue: *WAI..............................................................................................................D-4
Status model ...............................................................................................................E-1
Overview..............................................................................................................................E-1
Status register set contents.......................................................................................................E-1
Queues .....................................................................................................................................E-2

2606
B System SourceMeter® Instrument Reference Manual Table
of contents
Status function summary...........................................................................................................E-3
Status model diagrams .............................................................................................................E-4
Clearing registers...............................................................................................................E-11
Programming and reading registers...................................................................................E-12
Programming enable and transition registers..........................................................................E-12
Reading registers....................................................................................................................E-12
Status byte and service request (SRQ) .............................................................................E-13
Status Byte Register ...............................................................................................................E-13
Service Request Enable Register ...........................................................................................E-15
Serial polling and SRQ............................................................................................................E-15
Status byte and service request commands............................................................................E-15
Enable and transition registers................................................................................................E-16
Controlling node and SRQ enable registers............................................................................E-16
Status register sets ............................................................................................................E-16
System Summary Registers....................................................................................................E-17
Standard Event Register.........................................................................................................E-17
Operation Status Registers.....................................................................................................E-19
Questionable Status Registers................................................................................................E-20
Measurement Event Registers................................................................................................E-21
Register programming example ..............................................................................................E-22
TSP-Link system status .....................................................................................................E-22
Status model configuration example .......................................................................................E-22
Index.....................................................................................................................,QGH[1