Agilent Technologies 66311A User manual

Errata
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businesses are now part of Agilent Technologies. We have made no changes to this
manual copy. The HP XXXX referred to in this document is now the Agilent XXXX.
For example, model number HP8648A is now model number Agilent 8648A.
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66311A Mobile Communications DC Source User's Guide
5962-8272
May 1998

USER’S GUIDE
HP Model 66311A
Mobile Communications
DC Source
For instruments with Serial Numbers:
HP 66311A: US38180101 and up
HP Part No. 5962-8272
Microfiche No. 5962-8273
Printed in USA: May 1998

iii
Safety Summary
The following general safety precautions must be observed during all phases of operation of this instrument.
Failure to comply with these precautions or with specific warnings elsewhere in this manual violates safety
standards of design, manufacture, and intended use of the instrument. Hewlett-Packard Company assumes no
liability for the customer's failure to comply with these requirements.
GENERAL
This product is a Safety Class 1 instrument (provided with a protective earth terminal). The protective features of
this product may be impaired if it is used in a manner not specified in the operation instructions.
Any LEDs used in this product are Class 1 LEDs as per IEC 825-1.
ENVIRONMENTAL CONDITIONS
This instrument is intended for indoor use in an installation category II, pollution degree 2 environment. It is
designed to operate at a maximum relative humidity of 95% and at altitudes of up to 2000 meters. Refer to the
specifications tables for the ac mains voltage requirements and ambient operating temperature range.
BEFORE APPLYING POWER
Verify that the product is set to match the available line voltage, the correct fuse is installed, and all safety
precautions are taken. Note the instrument's external markings described under "Safety Symbols".
GROUND THE INSTRUMENT
To minimize shock hazard, the instrument chassis and cover must be connected to an electrical ground. The
instrument must be connected to the ac power mains through a grounded power cable, with the ground wire firmly
connected to an electrical ground (safety ground) at the power outlet. Any interruption of the protective (grounding)
conductor or disconnection of the protective earth terminal will cause a potential shock hazard that could result in
personal injury.
ATTENTION: Un circuit de terre continu est essentiel en vue du fonctionnement sécuritaire de l'appareil.
Ne jamais mettre l'appareil en marche lorsque le conducteur de mise … la terre est d‚branch‚.
FUSES
Only fuses with the required rated current, voltage, and specified type (normal blow, time delay, etc.) should be
used. Do not use repaired fuses or short-circuited fuseholders. To do so could cause a shock or fire hazard.
DO NOT OPERATE IN AN EXPLOSIVE ATMOSPHERE
Do not operate the instrument in the presence of flammable gases or fumes.
DO NOT REMOVE THE INSTRUMENT COVER
Operating personnel must not remove instrument covers. Component replacement and internal adjustments must be
made only by qualified service personnel.
Instruments that appear damaged or defective should be made inoperative and secured against unintended
operation until they can be repaired by qualified service personnel.

iv
SAFETY SYMBOLS
Direct current
Alternating current
Both direct and alternating current
Three-phase alternating current
Earth (ground) terminal
Protective earth (ground) terminal
Frame or chassis terminal
Terminal is at earth potential. Used for measurement and control circuits designed to be
operated with one terminal at earth potential.
Terminal for Neutral conductor on permanently installed equipment
Terminal for Line conductor on permanently installed equipment
On (supply)
Off (supply)
Standby (supply). Units with this symbol are not completely disconnected from ac mains when
this switch is off. To completely disconnect the unit from ac mains, either disconnect the power
cord or have a qualified electrician install an external switch.
In position of a bi-stable push control
Out position of a bi-stable push control
Caution, risk of electric shock
Caution, hot surface
Caution (refer to accompanying documents)
WARNING The WARNING sign denotes a hazard. It calls attention to a procedure, practice, or the like,
which, if not correctly performed or adhered to, could result in personal injury. Do not proceed
beyond a WARNING sign until the indicated conditions are fully understood and met.
Caution The CAUTION sign denotes a hazard. It calls attention to an operating procedure, or the like,
which, if not correctly performed or adhered to, could result in damage to or destruction of part
or all of the product. Do not proceed beyond a CAUTION sign until the indicated conditions
are fully understood and met.

v
Declaration Page
DECLARATION OF CONFORMITY
according to ISO/IEC Guide 22 and EN 45014
Manufacturer's Name: Hewlett-Packard Company
Manufacturer's Address: 150 Green Pond Road
Rockaway, New Jersey 07866
U.S.A.
declares that the Product
Product Name: a) Dynamic Measurement DC Source
b) System DC Power Supply
Model Number: a) HP 66311A, 66312A
b) HP 6612B, 6611C, 6612C, 6613C, 6614C
conforms to the following Product Specifications:
Safety: IEC 1010-1:1990+A1(1992) / EN 61010-1:1993
EMC: CISPR 11:1990 / EN 55011:1991 - Group 1 Class B
IEC 801-2:1991 / EN 50082-1:1992 - 4 kV CD, 8 kV AD
IEC 801-3:1984 / EN 50082-1:1992 - 3 V / m
IEC 801-4:1988 / EN 50082-1:1992 - 0.5 kV Signal Lines
1 kV Power Lines
Supplementary Information:
The product herewith complies with the requirements of the Low Voltage Directive
73/23/EEC and the EMC Directive 89/336/EEC and carries the CE-marking accordingly.
New Jersey November, 1997 ______
Location Date Bruce Krueger / Quality Manager
European Contact: Your local Hewlett-Packard Sales and Service Office or Hewlett-Packard GmbH,
Department TRE, Herrenberger Strasse 130, D-71034 Boeblingen (FAX:[phone])

vi
Acoustic Noise Information
Herstellerbescheinigung
Diese Information steht im Zusammenhang mit den Anforderungen der
Maschinenläminformationsverordnung vom 18 Januar 1991.
* Schalldruckpegel Lp <70 dB(A)
* Am Arbeitsplatz
* Normaler Betrieb
* Nach EN 27779 (Typprüfung).
Manufacturer's Declaration
This statement is provided to comply with the requirements of the German Sound Emission Directive,
from 18 January 1991.
* Sound Pressure Lp <70 dB(A)
* At Operator Position
* Normal Operation
* According to EN 27779 (Type Test).
Printing History
The edition and current revision of this manual are indicated below. Reprints of this manual containing
minor corrections and updates may have the same printing date. Revised editions are identified by a new
printing date. A revised edition incorporates all new or corrected material since the previous printing
date.
Changes to the manual occurring between revisions are covered by change sheets shipped with the
manual. In some cases, the manual change applies only to specific instruments. Instructions provided on
the change sheet will indicate if a particular change applies only to certain instruments.
This document contains proprietary information protected by copyright. All rights are reserved. No part
of this document may be photocopied, reproduced, or translated into another language without the prior
consent of Hewlett-Packard Company. The information contained in this document is subject to change
without notice.
Copyright 1998 Hewlett-Packard Company Edition 1 __________May, 1998

vii
Table of Contents
Warranty Information ii
Safety Summary iii
Declaration Page v
Acoustic Noise Information vi
Printing History vi
Table of Contents vii
1 - QUICK REFERENCE 1
HP 66311A Mobile Communication DC Source 1
The Front Panel - At a Glance 2
The Rear Panel - At a Glance 3
Instrument Configuration 3
Front Panel Number Entry 4
Front Panel Annunciators 5
Immediate Action Keys 5
Front Panel Menus - At a Glance 6
SCPI Programming Commands - At a Glance 7
2 - GENERAL INFORMATION 9
Document Orientation 9
Safety Considerations 10
Options and Accessories 10
Description 11
Capabilities 11
Front Panel Controls 11
Remote Programming 12
Output Characteristic 12
3 - INSTALLATION 15
Installation and Operating Checklist 15
Inspection 16
Damage 16
Packaging Material 16
Items Supplied 16
Cleaning 16
Location 17
Bench Operation 17
Rack Mounting 17
Input Connections 18
Connect the Power Cord 18
Output Connections 18
Current Ratings 18
Voltage Drops and Lead Resistance 19
Remote Sensing 19
Remote Sense Leads 20
Maintaining Stability while Remote Sensing 22
Output Compensation (High Mode/Low Mode) 22
Local Sensing 23
OVP Considerations 24
External Protection Connections 24
Digital I/O Connections 25

viii
Controller Connections 26
HP-IB Interface 26
RS-232 Interface 26
4 - TURN-ON CHECKOUT 29
Checkout Procedure 29
In Case of Trouble 31
Error Messages 31
Line Fuse 31
5 - FRONT PANEL OPERATION 33
Introduction 33
Front Panel Description 33
System Keys 35
Function Keys 36
Immediate Action Keys 36
Scrolling Keys 36
Metering Keys 37
Output Control Keys 38
Entry Keys 39
Examples of Front Panel Programming 40
1 - Setting the Output Voltage, Current, and Compensation 40
2 - Querying and Clearing Output Protection and Errors 41
3 – Making Front Panel Measurements 42
4 - Programming External Protection and the Digital Port Functions 44
5 - Setting the HP-IB Address and RS-232 Parameters 44
6 - Saving and Recalling Operating States 45
6 - INTRODUCTION TO PROGRAMMING 47
HP-IB Capabilities of the DC Source 47
HP-IB Address 47
RS-232 Capabilities of the DC Source 47
RS-232 Data Format 47
Baud Rate 47
RS-232 Flow Control 48
Introduction to SCPI 48
SCPI References 48
HP-IB References 48
Conventions Used in This Guide 49
Types of SCPI Commands 49
Multiple Commands in a Message 50
Moving Among Subsystems 50
Including Common Commands 51
Using Queries 51
Types of SCPI Messages 51
The Message Unit 52
Headers 52
Query Indicator 52
Message Unit Separator 52
Root Specifier 52
Message Terminator 52
SCPI Data Formats 53
Numerical Data Formats 53
Suffixes and Multipliers 53

ix
Response Data Types 53
SCPI Command Completion 54
Using Device Clear 54
RS-232 Troubleshooting 55
SCPI Conformance Information 55
SCPI Confirmed Commands 55
Non-SCPI Commands 55
7 - PROGRAMMING THE DC SOURCE 57
Introduction 57
Programming the Output 57
Power-on Initialization 57
Enabling the Output 57
Output Voltage 58
Output Current 58
Triggering Output Changes 59
SCPI Triggering Nomenclature 59
Output Trigger System Model 59
Setting the Voltage or Current Trigger Levels 59
Initiating the Output Trigger System 60
Generating Triggers 60
Making Measurements 61
Controlling Measurement Samples 61
Current Ranges and Measurement Detector 62
Window Functions 62
Voltage and Current Measurements 63
Pulse Measurements 63
Internally Triggered Measurements 65
SCPI Triggering Nomenclature 65
Measurement Trigger System Model 65
Initiating the Measurement Trigger System 66
Selecting the Measurement Trigger Source 66
Generating Measurement Triggers 66
Pre-event and Post-event Triggering 68
Programming the Status Registers 69
Power-On Conditions 69
Operation Status Group 71
Questionable Status Group 72
Standard Event Status Group 72
Status Byte Register 72
Determining the Cause of a Service Interrupt 73
Servicing Operation Status and Questionable Status Events 73
Monitoring Both Phases of a Status Transition 74
Inhibit/Fault Indicator 74
Remote Inhibit (RI) 74
Discrete Fault Indicator (DFI) 75
Using the Inhibit/Fault Port as a Digital I/O 75
8 - LANGUAGE DICTIONARY 77
Introduction 77
Subsystem Commands 77
Common Commands 81
Programming Parameters 81
Calibration Commands 82

x
CALibrate:CURRent 82
CALibrate:CURRent:MEASure:LOWRange 82
CALibrate:CURRent:MEASure:AC 82
CALibrate:CURRent:NEGative 82
CALibrate:DATA 83
CALibrate:LEVel 83
CALibrate:PASSword 83
CALibrate:SAVE 83
CALibrate:STATe 84
CALibrate:VOLTage 84
CALibrate:VOLTage:PROTection 84
Display Commands 85
DISPlay 85
DISPlay:MODE 85
DISPlay:TEXT 85
Measurement Commands 86
MEASure:ARRay:CURRent? FETCh:ARRay:CURRent? 86
MEASure:ARRay:VOLTage? FETCh:ARRay:VOLTage? 86
MEASure:CURRent? FETCh:CURRent? 87
MEASure:CURRent:ACDC? FETCh:CURRent:ACDC? 87
MEASure:CURRent:HIGH? FETCh:CURRent:HIGH? 87
MEASure:CURRent:LOW? FETCh:CURRent:LOW? 88
MEASure:CURRent:MAXimum? FETCh:CURRent: MAXimum? 88
MEASure:CURRent:MINimum? FETCh:CURRent:MINimum? 88
MEASure:VOLTage? FETCh:VOLTage? 89
MEASure:VOLTage:ACDC? FETCh:VOLTage:ACDC? 89
MEASure:VOLTage:HIGH? FETCh:VOLTage:HIGH? 89
MEASure:VOLTage:LOW? FETCh:VOLTage:LOW? 90
MEASure:VOLTage:MAXimum? FETCh:VOLTage:MAXimum? 90
MEASure:VOLTage:MINimum? FETCh:VOLTage:MINimum? 90
SENSe:CURRent:DETector 91
SENSe:CURRent:RANGe 91
SENSe:FUNCtion 92
SENSe:SWEep:OFFSet:POINts 92
SENSe:SWEep:POINts 92
SENSe:SWEep:TINTerval 92
SENSe:WINDow 93
Output Commands 94
OUTPut 94
OUTPut:DFI 94
OUTPut:DFI:SOURce 94
OUTPut:PON:STATe 95
OUTPut:PROTection:CLEar 95
OUTPut:PROTection:DELay 95
OUTPut:RI:MODE 96
OUTPut:TYPE 96
[SOURce:]CURRent 97
[SOURce:]CURRent:PROTection:STATe 97
[SOURce:]CURRent:TRIGger 97
[SOURce:]DIGital:DATA 98
[SOURce:]DIGital:FUNCtion 98
[SOURce:]VOLTage 98
[SOURce:]VOLTage:PROTection 99
[SOURce:]VOLTage:PROTection:STATe 99
[SOURce:]VOLTage:TRIGger 99

xi
Status Commands 100
STATus:PRESet 100
STATus:OPERation? 100
STATus:OPERation:CONDition? 100
STATus:OPERation:ENABle 101
STATus:OPERation:NTR STATus:OPERation:PTR 101
STATus:QUEStionable? 102
STATus:QUEStionable:CONDition? 102
STATus:QUEStionable:ENABle 102
STATus:QUEStionable:NTR STATus:QUEStionable:PTR 103
System Commands 104
SYSTem:ERRor? 104
SYSTem:LANGuage 104
SYSTem:VERSion? 104
SYSTem:LOCal 105
SYSTem:REMote 105
SYSTem:RWLock 105
Trigger Commands 106
ABORt 106
INITiate:SEQuence INITiate:NAME 106
INITiate:CONTinuous:SEQuence1 INITiate:CONTinuous:NAME TRANsient 106
TRIGger 107
TRIGger:SOURce 107
TRIGger:SEQuence2 TRIGger:ACQuire 107
TRIGger:SEQuence2:COUNt:CURRent TRIGger:ACQuire:COUNt:CURRent 108
TRIGger:SEQuence2:COUNt:VOLTage TRIGger:ACQuire:COUNt:VOLTage 108
TRIGger:SEQuence2:HYSTeresis:CURRent TRIGger:ACQuire:HYSTeresis:CURRent 109
TRIGger:SEQuence2:HYSTeresis:VOLTage TRIGger:ACQuire:HYSTeresis:VOLTage 109
TRIGger:SEQuence2:LEVel:CURRent TRIGger:ACQuire:LEVel:CURRent 110
TRIGger:SEQuence2:LEVel:VOLTage TRIGger:ACQuire:LEVel:VOLTage 110
TRIGger:SEQuence2:SLOPe:CURRent TRIGger:ACQuire:SLOPe:CURRent 111
TRIGger:SEQuence2:SLOPe:VOLTage TRIGger:ACQuire:SLOPe:VOLTage 111
TRIGger:SEQuence2:SOURce TRIGger:ACQuire:SOURce 112
TRIGger:SEQuence1:DEFine TRIGger:SEQuence2:DEFine 112
Common Commands 113
*CLS 113
*ESE 113
*ESR? 114
*IDN? 114
*OPC 114
*OPT? 115
*PSC 115
*RCL 115
*RST 116
*SAV 116
*SRE 117
*STB? 117
*TRG 118
*TST? 118
*WAI 118
A - SPECIFICATIONS 119
Specifications 119
Supplemental Characteristics 120

xii
B - VERIFICATION AND CALIBRATION 123
Introduction 123
Equipment Required 123
Test Setup 123
Performing the Verification Tests 124
Turn-On Checkout 125
Voltage Programming and Measurement Accuracy 125
Current Programming and Measurement Accuracy 125
Performing the Calibration Procedure 127
Front Panel Calibration Menu 128
Front Panel Calibration 128
Calibration Error Messages 131
Changing the Calibration Password 131
Calibration Over the HP-IB 131
C - ERROR MESSAGES 133
Error Number List 133
D - EXAMPLE PROGRAMS 137
Introduction 137
Assigning the HP-IB Address in Programs 137
National Instruments GP-IB Driver 137
HP BASIC 140
Pulse Measurements 141
DFI Programming Example 145
E - LINE VOLTAGE CONVERSION 147
Open the Unit 147
Configure the Power Transformer 147
Install the Correct Line Fuse 148
Close the Unit 148
F - COMPATIBILITY LANGUAGE 149
Introduction 149
INDEX 155

1
1
Quick Reference
HP 66311A Mobile Communication DC Source
The HP 66311A is a 45 Watt, high performance dc power source that provides dynamic measurement
and analysis of voltage and current waveforms. It is designed to simplify the testing of digital wireless
communications products. For example, data acquired using its dynamic measurement capability can be
used in determining the battery operating time. The 15 volt source and 5A peak current capability
provides compatibility with a number of communications standards, inclunding: GSM, CDMA, TDMA,
PCS, DECT, TERA, PHS, NADC, PHS, and others.
The combination of bench-top and system features in this dc source provide versatile solutions for your
design and test requirements. Key features are summarized as follows:
Convenient bench-top features
♦Up to 45 Watts output power
♦Excellent transient voltage response characteristics
♦Source and measurement capability of 5 amperes for up to 7 milliseconds
♦Easy to use knob for voltage and current settings
♦Highly visible vacuum-fluorescent front panel display
♦Low power supply output noise of less than 6 mV peak-to-peak
♦Current measurement resolution better than 1 microampere in the low range
♦Current sinking up to 2.8 amperes
♦Save and recall up to 4 instrument operating states
♦I/O setup easily done from the front panel
Flexible system features
♦HP-IB (IEEE-488) and RS-232 interfaces are standard
♦SCPI (Standard Commands for Programmable Instruments) compatibility
♦Output programming response times of less than 200 microseconds
♦Dynamic current pulse measurement with pre- and post-trigger buffer capability

1 - Quick Reference
2
The Front Panel - At a Glance
1A 14-character
display shows output
measurements and
programmed values.
2Annunciators
indicate operating
modes and status
conditions.
3Rotary control sets
voltage, current, and
menu parameters.
Use and
to set the resolution;
then adjust the value
with the knob.
4Front panel output
connectors.
66311A 0-15V/0-3A
Mobile Communications DC Source
LINE
Off
On
Local Address
Recall
Meter
Protect
Voltage
Current
Output
Output
On/Off
Enter
Number
Enter
CirEntry OV
CalOCPProt Cir
Save
Error
12345
6789 0
.
-
50 VDC
Max
+_
+
-
SYSTEM FUNCTION ENTRY OUTPUT
CV CC Unr Dis OCP Prot Cal Shift Rmt Addr Err SRQ
Input
Backspace
1234
5678
5Turns the dc source
on and off.
6System keys:
♦return to Local
mode
♦set the HP-IB
address
♦set the RS-232
interface
♦display SCPI
error codes
♦save and recall
instrument states
♦select
programming
language.
7Function keys:
♦enable/disable
the output
♦select metering
functions
♦program voltage
and current
♦set and clear
protection
functions
♦and
scroll through the
front panel menu
commands.
8Entry keys:
♦enter values
♦increment or decrement
values
♦and
select front panel menu
parameters.
♦and
select a digit in the
numeric entry field.
Ä
ÄÄ
Ä
Ã
ÃÃ
Ã
Ã
ÃÃ
ÃÄ
ÄÄ
Ä
d
dd
dc
cc
c
Æ
ÆÆ
ÆÅ
ÅÅ
Å
Ã
ÃÃ
ÃÄ
ÄÄ
Ä
d
dd
dc
cc
c
Æ
ÆÆ
ÆÅ
ÅÅ
Å

Quick Reference - 1
3
The Rear Panel - At a Glance
1AC calibration switch
(see appendix B).
2HP-IB (IEEE-488)
interface connector.
3RS-232 interface
connector.
4INH/FLT (remote
INHibit / internal
FauLT) connector.
Connector plug is
removable.
WARNING:
NO OPERATOR SERVICEABLE PARTS INSIDE, REFER SERVICING TO SERVICE TRAINED PERSONNEL.
WARNING:
FOR CONTINUED FIRE PROTECTION, USE SPECIFIED LINE FUSE
-S
-+
+S
Local
Remote
SENSE
+
-50VDC MAX TO
RS 232 INH FLT
+-+
LINE FUSE
120V
1A
250V
RATING
000VA
50/60 Hz
FUSE
AC - I CAL
| Normal
/ Hold to Cal
2 3 4
5 6
1
7 8
5Output and Remote
sense connector.
Connector plug is
removable.
6Remote or Local
sense switch
7Fuse holder 8Power cord connector
(IEC 320)
Instrument Configuration
Use the front panel Address key to configure the interface
Refer to “Front Panel Menus - At a Glance”
♦Select either the HP-IB or RS-232 interface.
♦Enter the HP-IB bus address.
♦Configure the RS-232 baud rate, parity, and flow control.
♦Select either the SCPI or COMPatibility programming language.
♦Enable the optional HP 14575A remote front panel.

1 - Quick Reference
4
Front Panel Number Entry
Enter numbers from the front panel using one the following methods:
Use the arrow keys and knob to change voltage or current settings
NOTE: The output must be ON to see the displayed values change in Meter mode. With the
output enabled, this method changes the output voltage or current immediately.
Use the Function keys and knob to change the displayed settings
Use the arrow keys to edit individual digits in the displayed setting
Increments the flashing digit
Decrements the flashing digit
Moves the flashing digit to the right
Moves the flashing digit to the left
Enters the value when editing is complete
Use the Function keys and Entry keys to enter a new value
NOTE: If you make a mistake, use the Backspace key to delete the number, or press the Meter
key to return to meter mode.

Quick Reference - 1
5
Front Panel Annunciators
CV The output is operating in constant voltage mode.
CC The output is operating in constant current mode.
Unr The output is unregulated.
Dis The output is OFF. Press the Output On/Off key to turn the output on.
OCP The over-current protection state is ON. Press the OCP key to turn over-current
protection off.
Prot Indicates that the output has been disabled by one of the protection features.
Press the Prot Clear key to clear the protection condition.
Cal Calibration mode is ON. Scroll to the Cal Off command and press the Enter key
to exit the calibration mode.
Shift The Shift key has been pressed.
Rmt The selected Remote programming interface (either HP-IB or RS-232) is active.
Press the Local key to return the unit to front panel control.
Addr The interface is addressed to talk or listen.
Err There is an error in the SCPI error queue. Press the Error key to view the error
code.
SRQ The interface is requesting service.
Immediate Action Keys
A toggle switch that turns the output of the dc source on or off.
Activates front panel control when the unit is in remote mode (unless a Lockout
command is in effect).
Resets the protection circuit and allows the unit to return to its last programmed
state.
A toggle switch that enables or disables overcurrent protection.
Output
On/Off
Local
Prot ClrShift
OCP
Shift

1 - Quick Reference
6
Front Panel Menus - At a Glance
ADDRESS 7 Sets the HP-IB Address
INTF HPIB Selects an interface (HPIB or RS232)
BAUDRATE 300 Selects baud rate (300, 600, 1200, 2400, 4800, 9600)
PARITY NONE Selects message parity (NONE, EVEN, ODD, MARK, SPACE)
FLOW NONE Selects flow control (XON-XOFF, RTS-CTS, DTR-DSR, NONE)
LANG SCPI Selects language (SCPI or COMP)
REMOTE FP OFF Enables or disables HP 14575A front panel interface (ON or OFF)
*RCL 0 Recalls instrument state
*SAV 0 Saves present instrument state
ERROR 0 Displays errors in SCPI error queue
12.000V 0.204A Measures output voltage and current
12.500V MAX Measures peak output voltage
1.000V MIN Measures minimum output voltage
12.330V HIGH Measures the high level of a voltage pulse waveform
0.080V LOW Measures the low level of a voltage pulse waveform
12.000V RMS Measures rms voltage
0.350A MAX Measures peak output current
0.050A MIN Measures minimum output current
0.400A HIGH Measures the high level of a current pulse waveform
0.012A LOW Measures the low level of a current pulse waveform
0.210A RMS Measures rms current
VOLT 20.000 Sets the output voltage
CURR 2.000 Sets the output current
OC -- -- -- -- Protection status (example shows overcurrent tripped)
*RST Places the dc source in the factory-default state
PON:STATE RST Select the power-on state command (RST or RCL0)
PROT:DLY 0.08 Sets the output protection delay in seconds
RI LATCHING Sets the remote inhibit mode (LATCHING, LIVE, or OFF)
DFI OFF Sets the discrete fault indicator state (ON or OFF)
DFI:SOUR OFF Selects the DFI source (QUES, OPER, ESB, RQS, or OFF)
PORT RIDFI Sets the output port functions (RIDFI or DIGIO)
DIGIO 7 Sets and reads the I/O port value (0 through 7)
TYPE:CAP LOW Sets the output capacitance compensation (HIGH or LOW)
VOLT:PROT 22 Sets the overvoltage protection level
PROT:STAT ON Enables or disables overvoltage protection (ON or OFF)
CURR:RANG HIGH Sets the current range (HIGH, LOW, or AUTO)
CURR:DET ACDC Sets the current measurement detector (ACDC or DC)
TINT 46.8 Sets the time interval for a front panel measurement in seconds
POINT 2048 Sets the buffer size for a front panel measurement
CAL ON Accesses calibration menu (See Appendix B).
Use and to select parameters (table shows factory defaults). Use to exit any menu.
Address
d
dd
d
Recall
SaveShift
ErrorShift
Meter
d
dd
d
d
dd
d
d
dd
d
d
dd
d
d
dd
d
d
dd
d
d
dd
d
d
dd
d
d
dd
d
d
dd
d
Voltage
Current
Protect
Output
d
dd
d
d
dd
d
d
dd
d
d
dd
d
d
dd
d
d
dd
d
d
dd
d
d
dd
d
OVShift
d
dd
d
d
dd
d
d
dd
d
d
dd
d
d
dd
d
Shift Input
d
dd
d
d
dd
d
CalShift
MeterÅ
ÅÅ
ÅÆ
ÆÆ
Æ
d
dd
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dd
d

Quick Reference - 1
7
SCPI Programming Commands - At a Glance
NOTE: Some [optional] commands have been included for clarity. Refer to chapter 8 for a
complete description of all programming commands.
SENSe
ABORt :CURRent :RANGe <n>
CALibrate :DETector ACDC | DC
:CURRent [:POSitive] :FUNCtion “VOLT” | “CURR”
:NEGative :SWEep :OFFSet :POINts <n>
:MEASure :LOWRange :POINts <n>
:AC :TINTerval <n>
:DATA <n> [SOURce:] CURRent <n>
:LEVel P1 | P2 | P3 | P4 :TRIGgered <n>
:PASSword <n> :PROTection :STATe <bool>
:SAVE DIGital :DATA <n>
:STATe <bool> [, <n>] :FUNCtion RIDF | DIG
:VOLTage [:DC] VOLTage <n>
:PROTection :TRIGgered <n>
DISPlay :PROTection <n>
<bool> :STATe <bool>
:MODE NORMal | TEXT STATus
:TEXT <display_string> :PRESet
INITiate :OPERation [:EVENt]?
:SEQuence[1|2] :CONDition?
:NAME TRANsient | ACQuire :ENABle <n>
:CONTinuous :SEQuence[1], <bool> :NTRansition <n>
:NAME TRANsient, <bool> :PTRansition <n>
MEASure | FETCh2:QUEStionable [:EVENt]?
:ARRay :CURRent? :CONDition?
:VOLTage? :ENABle <n>
[:CURRent] [:DC]? :NTRansition <n>
:ACDC? :PTRansition <n>
:HIGH? SYSTem
:LOW? :ERRor?
:MAX? :LANGuage SCPI | COMPatibility
:MIN? :VERSion?
:VOLTage [:DC]? :LOCal
:ACDC? :REMote
:HIGH? :RWLock
:LOW? TRIGger
:MAX? :SEQuence2| :ACQuire [:IMMediate]1
:MIN? :COUNt :CURRent <n>
OUTPut :VOLTage <n>
<bool> :HYSTeresis:CURRent <n>
:DFI <bool> :VOLTage <n>
:SOURce QUES | OPER | ESB | RQS | OFF :LEVel :CURRent <n>
:PON :STATe RST | RCL0 :VOLTage <n>
:PROTection :CLEar :SLOPe :CURRent POS | NEG | EITH
:DELay <n> :VOLTage POS | NEG | EITH
:RI :MODE LATCHing | LIVE | OFF :SOURce BUS | INTernal
:TYPE [:CAPacitance] HIGH | LOW [:SEQuence1| :TRANsient][:IMMediate]
:SOURce BUS
:SEQuence1 :DEFine TRANsient
:SEQuence2 :DEFine ACQuire

9
2
General Information
Document Orientation
This manual describes the operation of the HP Model 66311A Mobile Communications DC Source.
Unless otherwise noted, this model will be referred to by the description "dc source" throughout this
manual.
The following Getting Started Map will help you find the information you need to complete the specific
task that you want to accomplish. Refer to the table of contents or index of each guide for a complete list
of the information contained within.
Getting Started Map
Task Where to find information
Quick Reference Section Chapter 1
Installing the unit
Line voltage connections
Computer connections
Load connections
Chapter 2
Checking out the unit
Verifying proper operation
Using the front panel
Calibrating the unit
Chapter 3
Using the front panel
Front panel keys
Front panel examples
Chapter 5
Using the programming interface
HP-IB interface
RS-232 interface
Chapter 6
Programming the unit using SCPI (and
COMPatibility) commands
SCPI commands
SCPI programming examples
SCPI language dictionary
Chapters 7 and 8 for SCPI commands.
Appendix D for SCPI examples
Appendix F for COMPatibility commands
Programming the unit using the HP VXIplug&play
instrument driver
Installing the instrument driver
Instrument driver functions
C/C++ example programs
Visual BASIC example programs
LabVIEW example programs
HP VEE example programs
HP VXIplug&play installation sheet and
on-line help
NOTE:
The driver must be installed on your pc to
access the on-line information.
Drivers for HP-UX are available on the
web at www.hp.com/go/power