GW Instek PEL-2000 Series Owner's manual

Programmable DC Electronic Load
PEL-2000 Series
PROGRAMMING MANUAL
GW INSTEK PART NO. 82EL-20040I01
ISO-9001 CERTIFIED MANUFACTURER
September 2009 edition
This manual contains proprietary information which is protected by
copyright. All rights are reserved. No part of this manual may be
photocopied, reproduced or translated to another language without
prior written consent of Good Will Corporation.
The information in this manual was correct at the time of printing.
However, Good Will continues to improve products and reserves the
right to change specifications, equipment, and maintenance
procedures at any time without notice.
Good Will Instrument Co., Ltd.
No. 7-1, Jhongsing Rd., Tucheng City, Taipei County 236, Taiwan.

TABLE OF CONTENTS
3
Table of Contents
INTERFACE OVERVIEW ..................................................... 5
Rear Panel Overview .................................. 5
PEL-2004.................................................... 5
PEL-2002.................................................... 5
Configuring the USB Interface ................... 6
RS-232C Interface Configuration ................ 8
GPIB Interface Configuration ................... 11
COMMAND OVERVIEW .................................................. 13
Command Syntax ..................................... 13
List of Commands in Functional Order .... 16
COMMAND DETAILS ...................................................... 23
Common commands................................ 24
Abort Subsystem...................................... 30
Channel Subsystem.................................. 31
CONFIGURE Subsystem .......................... 34
Utility Subsystem..................................... 45
Current Subsystem................................... 50
FETCH Subsystem ................................... 64
LOAD Subsystem ..................................... 68
Measure Subsystem ................................. 72
MODE Subsystem.................................... 77
Program Subsystem ................................. 79
Resistance Subsystem.............................. 87
RUN Subsystem....................................... 98
SHOW Subsystem.................................... 99
SPECIFICATION Subsystem ....................101
STATUS Subsystem .................................105
Voltage Subsystem..................................113
SYSTEM Subsystem ................................117
PEL-2000 Programming Manual
Memory Subsystem................................ 118
SEQuence Subsystem............................. 122
Command Error Codes ........................... 130
STATUS REGISTERS .......................................................131
Status Register Overview ....................... 131

INTERFACE OVERVIEW
5
INTERFACE OVERVIEW
This manual describes how to use the PEL-2000’s
remote command functionality and lists the
command details. The Overview chapter describes
how to configure the PEL-2000 USB/RS232/GPIB
remote control interface.
Rear Panel Overview
PEL-2004
PEL-2002
PEL-2000 Programming Manual
6
Configuring the USB Interface
USB connection PC side connector Type A, host
PEL-2000 side
connector
Type B, device
Speed
1.1/2.0 (full speed)
Panel operation 1. Press the Shift Key then the Help
key to access the Utility menu.
2. Press F3(Interface Menu).
3.
4. If the interface is not USB, use the
selector knob to choose USB.
5. Connect the USB cable to the
USB-B slave port on the rear.
6. When the PC asks for the USB driver, select
pel_cdc_2000.inf (downloadable from the GW
website, www.gwinstek.com, PEL-2000 product
corner).

INTERFACE OVERVIEW
7
7. On the PC, activate a terminal application such
as MTTTY (Multi-Threaded TTY). To check the
COM port No., see the Device Manager in the
PC. For WindowsXP, select Control panel →
System →Hardware tab.
8. Run this query command via the terminal
application.
*idn?
This command should return the manufacturer,
model number, serial number, and firmware
version in the following format.
GW, PEL-2002/2004, 00000001, V1.00
9. Configuring the command interface is
completed. Refer to the other chapters for more
details.
PEL-2000 Programming Manual
8
RS-232C Interface Configuration
RS-232C
configuration
Connector DB-9, Male
Baud rate 2400, 4800, 9600, 19200, 38400
Parity
None, Odd, Even
Data bit
8 (fixed)
Stop bit
1, 2
Panel operation 1. Press the Shift Key then the Help
key to access the Utility menu.
2. Press the Shift Key then the Help
key to access the Utility menu.
3.
03/02/09
10 : 30
O
ConfigureOther
System
Info Interface Time SetLoad
RS232
4. If the interface is not set to RS232,
use the selector knob to change
the interface to RS232.

INTERFACE OVERVIEW
9
5. Edit the Baud rate, Stop bit and
parity.
Baud rate 2400, 4800, 9600, 19200, 38400
Stop Bit Range 1,2
Parity Range None, Odd, Even
6. Connect the RS-232C cable to the
rear panel port: DB-9 male
connector.
Terminal
application
Invoke a terminal application such as MTTTY
(Multi-Threaded TTY).
For RS-232C, set the COM port, baud rate, stop
bit, data bit, and parity accordingly.
To check the COM port No. for RS-232C, see the
Device Manager in the PC. For WinXP, Control
panel →System →Hardware tab.
7. Ensure the terminal application has the
following settings;
8. Baud rate – as per PEL-2000 settings
9. Com Port – as per PC settings (Device
Manager)
10. Parity – None
11. Data bits – 8
12. Stop bits – None
PEL-2000 Programming Manual
10
Functionality
check
Run this query command via the terminal.
*idn?
This should return the Manufacturer, Model
number, Serial number, and Firmware version in
the following format.
GW, PEL-2002/2004, 00000001, V1.00
Pin assignment 15
69
2: RxD (Receive data)
3: TxD (Transmit data)
5: GND
1, 4, 6, 7,8, 9: No connection
PC connection Use the Null Modem connection as shown in the
diagram below.
Pin 2 RxD
Pin 3 TxD
Pin 5 GND
Pin 2 RxD
Pin 3 TxD
Pin 5 GND
PEL series PC

INTERFACE OVERVIEW
11
GPIB Interface Configuration
Panel operation 1. Press the Shift Key then the Help
key to access the Utility menu.
2. Press F3(Interface Menu).
3.
4. If the interface is not set to GPIB,
use the selector knob to change
the interface to GPIB.
5. Edit the GPIB address.
Range 1 ~ 30
6. Connect the GPIB cable to
the rear panel port: 24-pin
female connector
PEL-2000 Programming Manual
12
GPIB constraints Maximum 15 devices altogether, 20m cable
length, 2m between each device
Unique address assigned to each device
At least 2/3 of the devices turned On
No loop or parallel connection

COMMAND OVERVIEW
13
COMMAND OVERVIEW
The Command overview chapter lists all the PEL-
2000 commands and command queries .The
command syntax section shows you the basic rules
you have to apply when using commands.
Command Syntax
Compatible
standard
IEEE488.2, 1992 (fully compatible)
SCPI, 1994 (partially compatible)
Command types There are a number of different instrument
commands and queries. A command sends
instructions or data to the electronic load and a
query receives data or status information from the
electronic load.
Command Types
Simple
A single command with/without
a parameter
Example *OPC
Compound
Two or more commands
separated by a colon (:)
with/without a parameter
Example UTILITY:SOUND 1
Query
A query is a simple or compound
command followed by a question
mark (?). A parameter (data) is
returned.
Example UTILITY:SOUND?
PEL-2000 Programming Manual
14
Command forms Commands and queries have two different forms,
long and short. The command syntax is written
with the short form of the command in capitals
and the remainder (long form) in lower case.
Short
FETCh:VOLTage?
Short
Long
The commands can be written in capitals or lower-
case, just so long as the short or long forms are
complete. An incomplete command will not be
recognized.
Below are examples of correctly written
commands.
LONG FETCh:VOLTage?
FETCH:VOTAGE?
fetch:voltage?
SHORT FETC:VOLT?
fetc:volt?
Square Brackets Commands that contain squares brackets indicate
that the contents are optional. The function of the
command is the same with or without the square
bracketed items, as shown below.
Example:
:LOAD[:STATe]
= :LOAD:STATe
= :LOAD
Command format
1: command header
2: single space
3: parameter
4: message terminator

COMMAND OVERVIEW
15
Parameter Type Description Example
<Boolean>
Boolean logic 0, 1
<NR1>
integers 0, 1, 2, 3
<NR2>
decimal numbers 0.1, 3.14, 8.5
<NR3>
floating point 4.5e-1, 8.25e+1
<NRf>
any of NR1, 2, 3 1, 1.5, 4.5e-1
<NRf+>
NRf type
including MIN
(minimum) and
MAX (maximum)
limits of the
parameter.
1, 1.5, 4.5e-1
MAX, MIN
<aard>
Arbitrary ascii
characters.
Message
terminator
LF^END line feed code (hexadecimal 0A)
with END message
LF
line feed code
<dab>^END
last data byte with END message
PEL-2000 Programming Manual
16
List of Commands in Functional Order
Common
Commands
*CLS .............................................................................24
*ESE .............................................................................25
*ESR? ...........................................................................25
*IDN?...........................................................................26
*OPC............................................................................26
*RCL.............................................................................27
*RDT?...........................................................................27
*RST.............................................................................27
*SAV.............................................................................28
*SRE.............................................................................28
*STB? ...........................................................................29
*TRG ............................................................................29
Abort :ABORt .........................................................................30
Channel :CHANnel[:LOAD]........................................................31
:CHANnel:ACTive ........................................................32
:CHANnel:SYNCon......................................................32
:CHANnel:ID? ..............................................................33

COMMAND OVERVIEW
17
Configure :CONFigure:VOLTage:ON.......................................... 34
:CONFigure:VOLTage:RANGe ................................... 35
:CONFigure:VOLTage:LATch ..................................... 35
:CONFigure:AUTO:LOAD .......................................... 36
:CONFigure:AUTO:MODE ......................................... 37
:CONFigure:SOUND .................................................. 37
:CONFigure:REMote................................................... 38
:CONFigure:SAVE....................................................... 38
:CONFigure:LOAD...................................................... 38
:CONFigure:PROTection:CURRent:STATe ................ 39
:CONFigure:PROTection:CURRent:LEVel.................. 40
:CONFigure:PROTection:VOLTage:STATe ................ 41
:CONFigure:PROTection:VOLTage:LEVel.................. 41
:CONFigure:PROTection:POWer:STATe.................... 42
:CONFigure:PROTection:POWer:LEVel..................... 43
:CONFigure:PROTection:UVP:CLEar......................... 43
:CONFigure:PROTection:UVP:LEVel.......................... 44
Utility :UTILITY:AUTO:LOAD................................................ 45
:UTILITY:AUTO:MODE .............................................. 46
:UTILITY:SOUNd........................................................ 46
:UTILITY:REMote........................................................ 47
:UTILITY:REMote:MODE ........................................... 47
:UTILITY:TIME ............................................................ 48
:UTILITY:LOAD........................................................... 48
PEL-2000 Programming Manual
18
Current :CURRent:STATic:L1/L2 ..............................................50
:CURRent:STATic:RISE/FALL ......................................51
:CURRent:STATic:LOW:AVALue/BVALue...................52
:CURRent:STATic:LOW:RISE/FALL.............................53
:CURRent:STATic:HIGH:AVALue/BVALue .................54
:CURRent:STATic:HIGH:RISE/FALL ...........................55
:CURRent:DYNamic:L1/L2..........................................56
:CURRent:DYNamic:RISE/FALL..................................57
:CURRent:DYNamic:T1/T2..........................................57
:CURRent:DYNamic:LOW:L1/L2.................................58
:CURRent:DYNamic:LOW:RISE/FALL ........................59
:CURRent:DYNamic:LOW:T1/T2 ................................60
:CURRent:DYNamic:HIGH:L1/L2...............................61
:CURRent:DYNamic:HIGH:RISE/FALL.......................62
:CURRent:DYNamic:HIGH:T1/T2 ..............................63
Fetch :FETCh:VOLTage?........................................................64
:FETCh:CURRent?........................................................64
:FETCh:POWer? ...........................................................65
:FETCh:STATus? ..........................................................65
:FETCh:ALLVoltage? ....................................................65
:FETCh:ALLCurrent? ....................................................66
:FETCh:ALLPower?.......................................................66
Load :LOAD:[STATe].............................................................68
:LOAD:SHORt:[STATe] ................................................68
:LOAD:SHORt:KEY ......................................................69
:LOAD:PROTection?....................................................70
:LOAD:PROTection:CLEar...........................................70
:LOAD:TIME?...............................................................70

COMMAND OVERVIEW
19
Measure :MEASure:VOLTage? .................................................. 72
:MEASure:CURRent? .................................................. 72
:MEASure:POWer?...................................................... 73
:MEASure:INPut ......................................................... 73
:MEASure:SCAN ......................................................... 74
:MEASure:ALLVoltage?............................................... 74
:MEASure:ALLCurrent?............................................... 75
:MEASure:ALLPower? ................................................. 75
Mode :MODE ........................................................................ 77
Program :PROGram:FILE .......................................................... 79
:PROGram:SEQuence................................................. 80
:PROGram:MEMory.................................................... 80
:PROGram:SEQuence:SHORt:CHANnel ................... 81
:PROGram:SEQuence:SHORt:TIME.......................... 82
:PROGram:SEQuence:MODE .................................... 82
:PROGram:ACTive ...................................................... 83
:PROGram:CHAin....................................................... 84
:PROGram:ONTime ................................................... 84
:PROGram:OFFTime .................................................. 85
:PROGram:RUN.......................................................... 86
:PROGram:SAVE......................................................... 86
PEL-2000 Programming Manual
20
Resistance :RESistance:L1/L2........................................................87
:RESistance:RISE/FALL................................................88
:RESistance:STATic:LOW:AVALue/BVALue................89
:RESistance:STATic:LOW:RISE/FALL..........................90
:RESistance:STATic:HIGH:AVALue/BVALue ..............91
:RESistance:STATic:HIGH:RISE/FALL........................91
:RESistance:DYNamic:LOW:L1/L2 .............................92
:RESistance:DYNamic:LOW:RISE/FALL .....................93
:RESistance:DYNamic:LOW:T1/T2 .............................94
:RESistance:DYNamic:HIGH:L1/L2............................95
:RESistance:DYNamic:HIGH:RISE/FALL ...................96
:RESistance:DYNamic:HIGH:T1/T2 ...........................97
RUN :RUN ............................................................................98
SHOW :SHOW[:DISPlay] single channel ................................99
:SHOW[:DISPlay] dual channel .................................100
Specification :SPECification:UNIT ..................................................101
:SPECification[:PASS]?...............................................102
:SPECification[:PASS]:CHANnel/VOLTage/CURRent?
....................................................................................102
:SPECification:VOLTage:H/L/C.................................103
:SPECification:CURRent:H/L/C.................................103
:SPECification:TEST:..................................................104

COMMAND OVERVIEW
21
Status :STATus:CHANnel:CONDition?............................... 105
:STATus:CHANnel:ENABle....................................... 106
:STATus:CHANnel:EVENt?....................................... 106
:STATus:CHANnel:NTRansition/PTRansition......... 107
:STATus:CSUMmary:ENABle ................................... 108
:STATus:CSUMmary:EVENt?.................................... 109
:STATus:QUEStionable:CONDition? ....................... 109
:STATus:QUEStionable:ENABle............................... 110
:STATus:QUEStionable[:EVENt]? ............................. 110
:STATus:QUEStionable:NTRansition/PTRansition . 111
:STATus:PREset ........................................................ 112
Voltage :VOLTage:L1/L2........................................................ 113
:VOLTage:AVALue/BVALue...................................... 114
:VOLTage:CURRent .................................................. 115
:VOLTage:MODE...................................................... 116
System :SYSTem:ERRor?....................................................... 117
:SYSTem:VERSion? ................................................... 117
Memory :MEMory:SAVE:PREset ............................................. 118
:MEMory:SAVE:PROGram........................................ 118
:MEMory:SAVE:ALLPreset ........................................ 119
:MEMory:SAVE:SETup.............................................. 119
:MEMory:RECall:PREset ........................................... 119
:MEMory:RECall:PROGram...................................... 120
:MEMory:RECall:ALLPreset ...................................... 120
:MEMory:RECall:SETup ............................................ 120
PEL-2000 Programming Manual
22
Sequence :SEQuence:EDIT:POINt.............................................122
:SEQuence:END ........................................................123
:SEQuence:POINt:RESistance...................................123
:SEQuence:POINt:CURRent......................................124
:SEQuence:POINt:RISE/FALL ...................................124
:SEQuence:POINt:TIME............................................125
:SEQuence:REPeat.....................................................126
:SEQuence:END:LOAD .............................................126
:SEQuence:VOLTage:RANGe....................................127
:SEQuence:LOOP:STARt ...........................................128
:SEQuence:CHANnel:TIME.......................................128
:SEQuence:RUN ........................................................129
:SEQuence:SAVE........................................................129

COMMAND DETAILS
23
COMMAND DETAILS
The Command details chapter shows the detailed
syntax, equivalent panel operation, and example
for each command. For the list of all commands,
see page16. Before programming the PEL-2000
electronic load, please become familiar with the
Status registers, detailed on page131.
Common commands................................ 24
Abort Subsystem...................................... 30
Channel Subsystem.................................. 31
CONFIGURE Subsystem .......................... 34
Utility Subsystem..................................... 45
Current Subsystem................................... 50
FETCH Subsystem ................................... 64
LOAD Subsystem ..................................... 68
Measure Subsystem ................................. 72
MODE Subsystem.................................... 77
Program Subsystem ................................. 79
Resistance Subsystem.............................. 87
RUN Subsystem....................................... 98
SHOW Subsystem.................................... 99
SPECIFICATION Subsystem ....................101
STATUS Subsystem .................................105
PEL-2000 Programming Manual
24
Common commands
*CLS.............................................................................24
*ESE .............................................................................25
*ESR? ...........................................................................25
*IDN?...........................................................................26
*OPC............................................................................26
*RCL.............................................................................27
*RDT?...........................................................................27
*RST.............................................................................27
*SAV.............................................................................28
*SRE.............................................................................28
*STB? ...........................................................................29
*TRG ............................................................................29
*CLS Status Command
Description Clears:
Channel Status Register
Channel Summary Register
Questionable Status Register
Standard Events Register
Operation Status Register
Error Queue
When the *CLS command follows a program
message terminator <nl>, the following is cleared:
Output Queue
MAV bit
See page131.
Syntax *CLS
Example *CLS

COMMAND DETAILS
25
*ESE Status Command
Description The Standard Event Status Enable command
determines which events in the Standard Event
Status Event register can set the Event Summary
Bit (ESB) of the Status Byte register. Any bit
positions set to 1 enable the corresponding event.
Any enabled events set bit 5 (ESB) of the Status
Byte register. See page138.
Syntax *ESE <NRf>
Parameter <NRf> Bit(s) Set <NRf> Bit(s) Set
4 QYE 32 CME
8 DDE 64 ~
16 EXE 128 ~
Example *ESE 40 Sets CME and DDE events
in the Standard Event
Status Event Register.
Query Syntax *ESE?
Return Parameter <NR1> Bit(s) Set <NR1> Bit(s) Set
4 QYE 32 CME
QYE 8 DDE 64 ~
16 EXE 128 ~
Example *ESE?
40
Returns the settings in the
Standard Event Status
Enable Register. Here CME
and QYE are enabled.
*ESR? Status Command
Description Reads the Standard Event Status Register. This
command also clears the Standard Event Status
Register. Page137.
Query Syntax *ESR?
PEL-2000 Programming Manual
26
Return Parameter <NR1> Bit(s) Set <NR1> Bit(s) Set
4 QYE 32 CME
8 DDE 64 ~
16 EXE 128 ~
Example *ESR?
48
The return value is the
status reading of the
standard Event Status
Register.
*IDN? System Command
Description Returns the load generator identification.
Query Syntax *IDN?
Return Parameter <aard> Data <aard> Data
GW Manufacturer XXXXXXXX Serial No.
PEL-2000 Model V1.00 Firmware
Version
Example *IDN?
GW, PEL-2002/2004,
00000001, V1.00
Returns the mainframe
identification string.
*OPC Status Command
Description This command sets the OPC (Operation Command
Bit) bit (bit 0) of the Standard Event Status Register
after the mainframe has completed all pending
operations. Page137.
Syntax *OPC
Example *OPC Sets the OPC bit.
Query Syntax *OPC?
Return Parameter <NR1> Operation <NR1> Operation
0 Pending 1 Complete

COMMAND DETAILS
27
Query Example *OPC?
1
All pending operations
are completed.
*RCL Status Command
Description The Recall Instrument State command restores the
instrument settings from a previously saved
memory setting.
Syntax *RCL <NRf>
Parameter <NRf> Recall Memory Setting
1~120 1~120
Example *RCL 1 Recalls Setting memory 1
*RDT? System Command
Description Returns the load module type in each channel in
order from 1~8. If no frame is present a 0 is
returned.
Query Syntax *RDT?
Return Parameter <aard> Occupied Channel
2020L PEL-2020 left channel
0 Empty channel
Query Example *RDT?
0,0,2020L,2020R,0,0,0,0
Channels 1-2 and 5-8 are
empty; 3-4 is occupied
by the PEL-2020 load
module.
*RST Status Command
Description Resets the mainframe by forcing the ABORt, *CLS,
and LOAD:PROT:CLE command.
Syntax *RST
Example *RST
PEL-2000 Programming Manual
28
*SAV All Channels
Description Saves the data memory into the specified save slot.
Syntax *SAV <NR1>
Parameter <NR1> Save slot
1~120 1~120
Example *SAV 2 Saves data memory to
save slot 2
*SRE Status Command
Description The Service Request Enable Command determines
which events in the Status Byte Register are
allowed to set the MSS (Master summary bit) Any
bit that is set to “1” will cause the MSS bit to be set.
See page139 for details.
Syntax *SRE <NRf>
Parameter <NRf> Bit(s) Set <NRf> Bit(s) Set
4 CSUM 32 ESB
8 QUES
16 MAV
Example *SRE 12 Sets bits CSUM and
QUES in the Service
Request Enable register.
Query Syntax *SRE?
Return Parameter <NR1> Bit(s) Set <NRf> Bit(s) Set
4 CSUM 32 ESB
8 QUES
16 MAV

COMMAND DETAILS
29
Example *SRE?
48
Returns settings of the
Service Request Enable
Register. Here ESB and
MAV are returned.
*STB? Status Command
Description Reads the Status Query Byte Register. The *STB?
command does not clear the register.
If the Master Summary Status bit (MSS) is set, it
indicates that there is a reason for a service
request.
Query Syntax *STB
Return Parameter <NRf> Bit(s) Set <NRf> Bit(s) Set
4 CSUM 32 ESB
8 QUES 64 MSS
16 MAV
Query Example *STB?
36
Returns status of a byte
query in the Status Byte
Register. Here CSUM
and ESB are returned.
*TRG Status Command
Description Trigger command. This command mimics GET
(Group Execute Trigger) as defined in IEEE 488.1.
Syntax *TRG
Example *TRG
PEL-2000 Programming Manual
30
Abort Subsystem
:ABORt .........................................................................30
:ABORt
All
Channel Command
Description Turns all electronic loads to OFF.
Syntax :ABORt
Example :ABORt

COMMAND DETAILS
31
Channel Subsystem
:CHANnel[:LOAD]....................................................... 31
:CHANnel:ACTive ....................................................... 32
:CHANnel:SYNCon..................................................... 32
:CHANnel:ID? ............................................................. 33
:CHANnel[:LOAD]
Channel Specific
Command
Description Selects the channel that the channel specific
commands use. This command will not change the
channel in the display screen.
Syntax :CHANnel[:LOAD] <NRf+>
Parameter <NRf+> Channel selected
1~8 CH1 ~ CH8
MAX CH8
MIN CH1
Example :CHAN 1
Sets channel 1 as the
specific channel.
:CHAN:LOAD 1 Sets channel 1 as the
specific channel.
Query Syntax :CHANnel?
Return Parameter <NR1> Current specific channel
1~8 CH1 ~ CH8
Query Example :CHAN?
1
Channel 1 is the current
specific channel.
PEL-2000 Programming Manual
32
:CHANnel:ACTive
Channel Specific
Command
Description This command is for compatibility with other
instruments only and has no action.
Syntax :CHANnel ACTive ON/1, OFF/1
Parameter ON/1, OFF/0 Active
ON/1 Enabled
OFF/0 Disabled
Example :CHAN:ACT ON Enables the specific
channel.
:CHANnel:SYNCon
Channel Specific
Command
Description Turns independent mode on or off for the channel.
Syntax :CHANnel:SYNCon ON/1, OFF/0
Parameter ON/1, OFF/0 Independent Mode
ON/1 ON
OFF/0
OFF
Example :CHAN:SYNC ON
Enables the current
channel to receive
synchronized commands
Query Syntax :CHANnel:SYNCon?
Return Parameter <NR1> Sync Status
0 Independent mode is OFF
1 Independent mode is ON
Query Example :CHAN:SYNC?
0
Independent mode is set
to OFF for the channel.

COMMAND DETAILS
33
:CHANnel:ID?
Channel Specific
Command
Description Queries the load module identity.
Query Syntax :CHANnel:ID?
Return Parameter <aard> Data <aard> Data
GW Manufacturer 00000001 Serial No.
PEL2020R Channel
load id
1.00 Firmware
Version.
Query Example :CHAN:ID?
GW, PEL2020R, 00000001,
V1.00
Returns the load
module identification
string.
PEL-2000 Programming Manual
34
CONFIGURE Subsystem
:CONFigure:VOLTage:ON ..........................................34
:CONFigure:VOLTage:RANGe ....................................35
:CONFigure:VOLTage:LATch ......................................35
:CONFigure:AUTO:LOAD ...........................................36
:CONFigure:AUTO:MODE..........................................37
:CONFigure:SOUND...................................................37
:CONFigure:REMote ...................................................38
:CONFigure:SAVE........................................................38
:CONFigure:LOAD ......................................................38
:CONFigure:PROTection:CURRent:STATe .................39
:CONFigure:PROTection:CURRent:LEVel...................40
:CONFigure:PROTection:VOLTage:STATe.................41
:CONFigure:PROTection:VOLTage:LEVel ..................41
:CONFigure:PROTection:POWer:STATe ....................42
:CONFigure:PROTection:POWer:LEVel......................43
:CONFigure:PROTection:UVP:CLEar..........................43
:CONFigure:PROTection:UVP:LEVel ..........................44
:CONFigure:VOLTage:ON
Channel Specific
Command
Description Sets Von (voltage on value). The allowable Von
values are channel and load module specific.
Syntax :CONFigure:VOLTage:ON <NRf>[MV, V, KV ]
Parameter <NRf>[ MV, V, KV ] Von
3 3 volts
30MV 30 millivolts
30V 30 volts
Example :CONF:VOLT:ON 30MV
Set Von to 30 millivolts.
Query Syntax :CONFigure:VOLTage:ON?

COMMAND DETAILS
35
Return Parameter <NR2> I unit = I volt Von value (volts)
1 1 volts
Query Example :CONF:VOLT:ON?
0.03
Von is set as 30 millivolts
(0.03 volts).
:CONFigure:VOLTage:RANGe
Channel Specific
Command
Description Sets Voltage range for CC mode.
Syntax :CONFigure:VOLTage:RANGe <NRf>[V], L, H
Parameter <NRf>[ V] , L, H Range
16 Low range*
80V High range*
L Low range
H High range
*Load module dependent, PEL-2020 shown.
Example :CONF:VOLT:RANG L
Sets the range to Low for
the channel.
Query Syntax :CONFigure:VOLTage:RANGe?
Return Parameter <NR2> Range
16 Low PEL-2020,2030,2040
125 Low PEL-2041
80 High PEL-2020,2030,2040
500 High PEL-2041
Query Example :CONF:VOLT:RANG?
500
Returns the voltage
range. In this case high
for the PEL-2041.
:CONFigure:VOLTage:LATch
Channel Specific
Command
Description Turn Von Latch on or off for the specific channel.
Syntax :CONFigure:VOLTage:LATch OFF/0, ON/1
PEL-2000 Programming Manual
36
Parameter OFF/0, ON/1 Von Latch
OFF/0 Off
ON/1 On
Example :CONF:VOLT:LAT 1
Sets Von latch to ON.
Query Syntax :CONFigure:VOLTage:LATch?
Return Parameter <NR1> Von latch status
0 Latched Off
1 Latched On
Query Example :CONF:VOLT:LAT?
1
Von latch is set to ON.
:CONFigure:AUTO:LOAD All channels
Description Configures the load generator for Auto Load On or
Off at start up.
Syntax :CONFigure:AUTO:LOAD OFF/0, ON/1
Parameter OFF/0, ON/1 Auto Load
OFF/0 Off
ON/1 On
Example :CONF:AUTO:LOAD ON
Configures Auto Load to
On
Query Syntax :CONFigure:AUTO:LOAD?
Return Parameter <NR1> Auto Load Status
0 Off
1 On
Query Example :CONF:AUTO:LOAD?
1
Auto load is On.

COMMAND DETAILS
37
:CONFigure:AUTO:MODE All channels
Description Configures the Auto Load mode as (run) Program
or Load.
Syntax :CONFigure:AUTO:MODE PROGRAM/0, LOAD/1
Parameter PROGRAM/0, LOAD/1 Auto Load Mode
PROGRAM/0 PROGRAM
LOAD/1 LOAD
Example :CONF:AUTO:MODE 1
Configures Auto Load to
LOAD
Query Syntax :CONFigure:AUTO:MODE?
Return Parameter <NR1> Auto Load Type Status
0 PROGRAM MODE
1 LOAD MODE
Query Example :CONF:AUTO:MODE?
1
Auto load mode is to
LOAD mode.
:CONFigure:SOUND
Channel Specific
Command
Description Sets the sound of each load module on or off.
Syntax :CONFigure:SOUND OFF/0, ON/1
Parameter OFF/0, ON/1 Sound
OFF/0 Off
ON/1 On
Example :CONF:SOUND ON
Configures the sound for
the specific channel to
On.
Query Syntax :CONFigure:SOUND?
PEL-2000 Programming Manual
38
Return Parameter <NR1> SOUND Status
0 Off
1 On
Query Example :CONF:SOUND?
0
Sound is off for the
specific channel.
:CONFigure:REMote All Channels
Description Turns remote control on or off for all interfaces.
Syntax :CONFigure:REMOTE OFF/0, ON/1
Parameter OFF/0, ON/1 Remote Control
OFF/0 Off
ON/1 On
Example :CONF:REM 1 Turns Remote control
on.
:CONFigure:SAVE All Channels
Description This command is for compatibility with other
instruments only and has no action.
Syntax :CONFigure:SAVE
Example :CONF:SAVE Saves the configuration
data for all channels into
internal memory.
:CONFigure:LOAD System Command
Description Configures the load module selector knob as OLD
or Updated.
Syntax :CONFigure:LOAD OLD/0, UPDATED/1

COMMAND DETAILS
39
Example :CONF:LOAD UPDATED
Sets the load module
selector knob as
Updated.
Parameter OLD/0, UPDATED/1 Configuration type
OLD/0 Old
UPDATED/1 Updated
Example :CONF:LOAD OLD
Configuration type set as
OLD.
Query Syntax :CONFigure:LOAD?
Return Parameter <NR1> Configuration type
0 Old
1 Updated
Query Example :CONF:LOAD?
0
Sets the load module
selector configuration
type as OLD.
:CONFigure:PROTection:CURRent:STATe
Channel Specific
Command
Description Sets the current protection for the specific channel
on or off. The current protection can also be
cleared.
Syntax :CONFigure:PROTection:CURRent:STATe OFF/0,
ON/1, CLEAR/2
Parameter OFF/0, ON/1, CLEAR/2 Current Protection
CLEAR/2 Cleared
OFF/0 Off
ON/1 On
Example :CONF:PROT:CURR:STAT 1 Turns on current protection.
Query Syntax : CONFigure:PROTection:CURRent:STATe?
Return Parameter <NR1> Current Protection
0 Off
PEL-2000 Programming Manual
40
1 On
2 Clear
Query Example :CONF:PROT:CURR:STAT?
1
Current protection is
turned on.
:CONFigure:PROTection:CURRent:LEVel
Channel Specific
Command
Description Sets the current protection level for the
current/specific channel. The level can be set to
any applicable level or to the channel
maximum/minimum.
Syntax :CONFigure:PROTection:CURRent:LEVel <NRf>[A],
MIN, MAX
Parameter <NRf> Current Protection Level
.3 300mA
0.3A 300mA
300MA 300mA
MIN Sets to the minimum level
MAX Sets the current limit to
the maximum level
Example :CONF:PROT:CURR:LEV
MAX
Sets the current limit to
20.40A (PEL2020)
Query Syntax : CONFigure:PROTection:CURRent:LEVel?
Return Parameter <NRf> 1 unit = 1 amp Current protection level
1 1 amp.
Query Example :CONF:PROT:CURR:LEV?
0.30
Current protection level
is at 300mA.