Gossen MetraWatt SPL 200 - 400 User guide

Gossen MetraWatt SPL 200 - 400  User guide
Programming Guide
KONSTANTER SPL
3-349-710-03
3/10.16
SPL Series Electronic Load SCPI Programming Guide
( :ROOT)
[SOURce:]
MODE
CURRent
[:LEVel]
[:IMMediate]
TRANsient
[:STATe]
:MODE
:LTIMe
INPut
[:STATe]
:SHORt
[:STATe]
[:AMPLitude]
:LATCh
:LOW
LIST
[:STATe]
:HIGH
[:STATe]
:VOLTage
:TRIGgered
:MEMO
[:LEVel]
STATus
:QUEStionable
[:EVENt]?
:CONDition?
:ENABle
:ENABle?
:OPERation
[:AMPLitude]
:NUMBer
:RISE
MEASure
SYSTem
:COUNt
:RATE
VOLTage
[:LEVeI]
[:IMMediate]
[:SCALar]
:ERRor
:CHAin
:CURRent
[:NEXT]?
:SAVE
[:DC]?
:VERSion?
:CLEar
:VOLTage
:REMote
[:AMPLitude]
:LOW
[:DC]?
BATTery
:REMote
[:STATe]
RESistance
[:LEVeI]
[:IMMediate]
TRIGger
:TERMinate
[:IMMediate]
:VOLTage
:SOURce
:CAPacity
:FUNCtion
[:AMPLitude]
:CLEar
:LOW
POWer
[:LEVeI]
[:IMMediate]
[:AMPLitude]
:LOCal
ABORt
:UPDate
:UPDate
:CODE
Content
1
Page
SCPI Introduction ............................................................. 2
1.1
What is SCPI? ...............................................................2
1.2
Command Syntax ..........................................................2
1.2.1 SCPI Keywords .............................................................2
1.2.1.1 Forms of Keywords .....................................................2
1.2.1.2 Keyword Conventions .................................................3
1.2.2 Separators .....................................................................3
1.2.3 Parameters ....................................................................3
1.2.3.1 Parameter Formats ......................................................3
1.2.3.2 Data Unit .....................................................................3
1.2.4 Terminators ...................................................................3
1.3
Examples .......................................................................3
1.3.1 Simple Command Statements .......................................3
1.3.2 Compound Command Statements ................................3
1.3.3 Simple Command Queries .............................................3
1.3.4 Compound Command Queries ......................................3
2
SCPI Commands Descriptions .......................................... 4
2.1
2.2
2.2.1
2.2.2
2.2.3
2.2.4
2.2.5
2.2.6
2.2.7
2.2.8
2.2.9
2.2.10
2.2.11
2.2.12
2.2.13
2.2.14
IEEE488.2 Common Commands ...................................4
SCPI Root Commands ..................................................6
ABORt ...........................................................................6
CURRent Subsystem .....................................................6
VOLTage Subsystem .....................................................7
RESistance Subsystem ..................................................8
POWer Subsystem ........................................................8
INPut Subsystem ...........................................................8
TRANsient Subsystem ...................................................9
LIST Subsystem ..........................................................10
MODE ..........................................................................10
MEASure .....................................................................11
STATus Subsystem .....................................................11
SYSTem ......................................................................12
TRlGger Subsystem .....................................................12
ATTery Subsystem .......................................................13
3
Error Messages .............................................................. 13
4
Status Register Reporting .............................................. 14
5
Product Support ............................................................. 16
1
SCPI Introduction
1.1
What is SCPI?
SCPI is the Standard Commands for Programmable Instruments
based on the IEEE488.1 and IEEE488.2 Standards. It conforms
to IEEE754 Standard for Floating-Point Arithmetic, ISO646 7-bit
Coded Character Sets for Information Exchange, and other kinds
of standards.
SCPI Commands for SPL Series Electronic Load can be divided
into two types: one is IEEE488.2 common commands; the other
is specific commands for the load.
Some generic commands and queries for instruments are
defined by the IEEE488.2 common commands. All IEEE488.2
common commands consist of “*” and the mnemonic symbol of
three characters. (For example: *IDN?, *SAV, *WAI etc.)
The specific commands are used to execute settings, testing,
and measuring etc. functions of the load. These commands are
organized in the form of the command tree. Each command contains several mnemonic symbols. The nodes are separated by the
character “:”, see figure 1-1. The top part of the command tree is
called “ROOT”. The entire path from “ROOT” to leaf node is a
complete programming command.
1.2
Command Syntax
SCPI Commands for SPL Series Electronic Load carry on and
expand IEEE488.2 Standards. The programming command consists of keywords, separators, parameters, and terminators etc.
Take the following command as an example:
CURRent:PROTection:STATe ON
CURRent, PROTection, STATe are the keywords; “:” and
spaces are separators; ON is the parameter (some commands
have several parameters; they are separated by “,”); the carriage
return after the command is a terminator.
To make it easy to describe, the various follow-up symbols
represent:
Square brackets ([]) represent the optional keywords or the
parameter can be omitted.
Braces ({}) represent the parameter options in the command
string.
Angle brackets (<>) represent that it is necessary to provide a
numeric parameter.
Vertical line (|) is used to separate multiple parameter options.
1.2.1 SCPI Keywords
1.2.1.1 Forms of Keywords
Each keyword has two forms: long form and short form.
Long Form It consists of one word or a phrase. If it is a word, the
long form keyword should be the complete word; if it is a phrase,
the long form keyword should consist of the first letter of each
word and the whole letters of the last word. The long form keyword for STATUS is STATus; the long form keyword for LOW
LEVEL is LLEVel.
Short Form The word contains only the first three or four letters of
the long form. The short form keyword for STATUS is STAT; the
short form keyword for LOW LEVEL is LLEV.
Short forms are constructed according to the following rules:
• If the keyword consists of four or fewer letters, then all the letters are used.
• If the keyword consists of five or more letters,
and the fourth letter is not a vowel,
then the first four letters are used;
and the fourth letter is a vowel,
then only the first three letters are used.
2
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1.2.1.2 Keyword Conventions
1.2.3.2 Data Unit
The short form part of each keyword is emphasized in boldface
uppercase letters to help you remember it.
• TRIGger
• IMMediate
• RESistance
• SHORt
The SCPI parser is not sensitive to case. It will accept Trig, trig,
trigger, TRIGGER, etc. Regardless of which form you use, the
load only recognizes the accurate long form and short form. For
example, RESI or TRI will not be recognized as the right command.
Numeric data may be followed by the unit. When no unit follows
the numeric data, the data unit is the standard unit of this command. See list1-2 for Data Unit, and see list 1-3 for Most-Used
Unit Multipliers.
1.2.2 Separators
Class
Preferred Unit
Current
A
Secondary Unit
Ampere
Resistance
OHM
Ohm
Time
s
MOHM
Referenced Unit
Megohm
Second
Amplitude
v
Volt
Power
w
Watt
List1-2 Data Unit
The colon “ : ” is used to separate the keywords of two adjacent
levels in command tree. For example: “INPut:PROTection:CLEar”.
The colon “:” can be regarded as the first character of the command to indicate this command is a root command.
The space “ ” is used to separate the command and the parameter.
The semicolon is used to separate multiple commands without
changing the level of the present commands. For example:
CURR:PROT:LEV 3;DEL 10. This command is equivalent of the
following two commands:
CURR:PROT:LEV 3
CURR:PROT:DEL 10
Using semicolon and colon properly can simplify the description
of command level. e.g. CURR 25;:VOLT 50. Please note that the
maximum length of a command should not exceed 100 bytes. If a
command exceeds this length, it will be given up by the load and
a remote error “-521 Input buffer overflow” will occur.
The comma “,” is used to separate multiple parameters.
List1-3 Most-Used Unit Multipliers
1.2.3 Parameters
1.3.1 Simple Command Statements
Parameters are data values or character strings, which follow
behind certain keywords, and are separated by spaces from keywords.
The simple command statement consists of a command, or keyword, usually followed by a parameter:
VOLT 25
CURR 50
TRIG
1.2.3.1 Parameter Formats
The parameters formats have numerical data format, character
data format and Bool format etc. The character format and Boolean format are similar to the keywords format, such as: ON, OFF
and CONTinuos. All parameters are ASCII. See the list 1-1 for
Parameter Formats.
Symbol
Description
< NRl>
Digits with no decimal point. 2730, 02730
The decimal point is assumed to be to the right of
the least-significant digit.
Example
< NR2>
Digits with a decimal point. 27.30, .02730。
< NR3>
Digits with a decimal point
and an exponent.
2.730 E+2, 2.730E-2
< NRf>
Flexible decimal form that
includes NR1 or NR2 or
NR3.
2730, 27.30, 2.730E+2。
Expanded decimal form that 2730, 27.30, 2.730E-2,
includes NRf and NRf and MIN, MAX
MIN, MAX. MIN and MAX
are the minimum and maximum limit values for the parameter.
< Bool>
Bool data
ON|OFF
< crd >
Character data
CV
< aard >
Return ASCII data. It`s allowed to return undelimited
7-bit ASCII. This data type is
an implied terminator.
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Mnemonic
Definition
1E6
MA
Mega
1E3
K
Kilo
1E-3
M
milli
1E-6
U
micro
1E-9
N
nano
1.2.4 Terminators
The command string sent to the load must be terminated by a
<new line> symbol (carriage return character). IEEE-488 EOI (End
Or Identify) can be regarded as <new line> symbol to be the terminator of the command. It is acceptable if there is a <new line>
symbol after the <carriage return character>.
1.3
Examples
1.3.2 Compound Command Statements
When two or more keywords are connected by colons, it creates
a compound command statement. Usually, the last keyword is
followed by a parameter, and is separated by a space:
VOLT:SLEW 1000
CURR:RANG 6
TRIG:SOUR BUS
If the compound command statement contains “[“,”]”, the keyword
of this part is dispensable.
CURRent:LEVeI:TRIGgered 0.5
CURRent:TRIGgered 0.5
These two commands are the same.
1.3.3 Simple Command Queries
< NRf+>
List1-1 Parameter Formats
Multiplier
The simple command query consists of a keyword followed by a
question mark (?):
VOLT?
CURR?
1.3.4 Compound Command Queries
When two or more keywords are connected by colons and followed by a question mark (?), it creates a compound query statement.
VOLT:TRIG?
CURR:PROT?
MEAS:POW?
3
2
SCPI Commands Descriptions
2.1
IEEE488.2 Common Commands
*OPC
Common commands are defined by the IEEE488.2 standard to
perform some of the basic instrument functions, such as recalling,
saving, and reset etc. IEEE488.2 Common Commands have no
hierarchical structure.
*CLS
Clears the following registers:
• Standard Event register
• Questionable Status Event register
• Operation Status Event register
• Status Byte Event register
• Clears the Error Queue
Command Syntax: *CLS
Parameters: None
*OPC?
*ESE
This command sets the condition of the Standard Event Status
Enable register. A “1” in the bit position enables the corresponding event and report this even to the Status Byte register. Refer to
the description about the Standard Event Status Enable register
in Status Register Reporting
Command Syntax: *ESE <NRf>
Parameter: 0~255
Power-on Value: refers to *PSC command
Example: *ESE 100
Query Syntax: *ESE?
Returned Parameter: <NR1> 0-255
Related Commands: *PSC *STB?
*ESR?
This query reads the Standard Event register. Reading the register
clears it. See the list below for the bit configuration of this register.
Bit
7
6
5
4
3
2
1
0
Bit
Name
PON
N.U
CME
EXE
DDE
QYE
N.U
OPC
DDE Device Dependent Error.
QYE Query Error. When an error occurs to the
query, QYE bit will be set.
N.U Null, Reserved Bit.
OPC Operation Complete.
Query Syntax: *ESR?
Parameters: None
Returned Parameter: <NRl>
Related Commands: *CLS *OPC
This query causes the load to place an ASCII “1” in the Output
Queue when all pending operations are completed. Unlike *OPC,
*OPC? prevents processing of all subsequent commands. If there
are triggers, and the trigger source has not been previously set to
EXT at this time, in this case, the only programmable way to
restore operation is by sending the load a GPIB DCL (Device Clear)
command.
Query Syntax: *OPC?
Returned Parameter: <NR1>
Related Commands: *OPC TRIG:SOUR *WAI
*PSC
This command controls the request service at power turn-on.
1: When the load is power on, the settings of Status Byte Enable
register and Standard Event Enable register are cleared to be 0.
0: The present settings of Status Byte Enable register and Standard Event Enable register are saved in nonvolatile memory. The
next time the load is turned on, the Standard Event Enable register will be programmed according to the saved settings.
Command Syntax: *PSC <bool>
Parameter: 0 | 1
Query Syntax:*PSC?
Returned Parameter: 0 | 1
Related Commands: *SRE *ESE
*RCL
List 2-1 Bit Definition of Standard Event Register
PON Power On. This bit is set when
the load is turned on.
N.U Null, Reserved Bit.
CME Command Error.
EXE Execution Error.
This command causes Bit 0 of the Standard Event Status Register to be set “1” when the load has completed all pending operations.
*OPC does not prevent processing of subsequent commands. All
pending operations are complete including all pending trigger levels have triggered.
Command Syntax: *OPC
Parameters: None
Related Commands: *WAI *OPC?
This command recalls the saved parameters of the load. The
recalled parameters need to be previously stored in memory.
When the saved parameters are recalling, the specified location of
these parameters must be used. *RCL also does the following:
1 Force an ABORt command before resetting any parameters.
(This removes all pending trigger levels.)
2 After all parameter have been recalled, executes an
INP:PROT:CLE to clear the load‘s protection status. At power
turn-on, the equivalent of an *RCL 0 is executed. Recalling the
unsaved location is defaulted to recall the location 0.
Command Syntax: *RCL <NR1>
Parameter: 0~9
Example: *RCL 5
Related Commands: *RST *SAV
*IDN?
Query the relevant information of the load.
Query Syntax: *IDN?
Parameters: None
Returned Parameter: <aard>
4
*RST
This command sets the load to its factor-defined state. Force an
ABORt command before resetting any parameters. After all
parameters have been reset, executes an INP:PROT:CLE to clear
the load‘s protection status.
Command Syntax: *RST
Parameter: None
Related Commands: *RCL *SAV
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*SAV
This command saves the parameters of the load in the nonvolatile
memory. There are 10 storage space in total (locations 0 through
9).
Command Syntax: *SAV <NR1>
Parameter: 0~9
Example: *SAV 5
Related Commands: *RCL *RST
*SRE
This command sets the condition of the Status Byte Enable register. The programming parameters determine whether or not a 0 to
1 transition in the Status Byte register will set the RQS bit of the
Status Byte register. See Status Reporting for more details concerning the Status Byte register.
Command Syntax: *SRE <NR1>
Parameter: 0~255
Query Syntax: *SRE?
Returned Parameter: <NR1>
Related Commands: *PSC
*STB?
This query reads the Status Byte register. The Status Byte register
is cleared when this query has been executed. The *STB? query
and a serial poll share the same returned parameter, but the service request bit (bit 6) of the Status Byte register will not be
cleared when a serial poll is sent. See Status Reporting for more
details concerning the Status Byte register.
Query Syntax: *STB?
Parameter: None
Returned Parameter: <NR1>
*TRG
This command which is essentially the same as the Group Execute Trigger (<GET>), generates a trigger to the load only if
TRIG:SOUR is set to BUS. This command becomes effective only
when the trigger source is set to BUS.
Command Syntax: *TRG
Parameter: None
Related Commands: TRIG TRIG:SOUR
*TST?
This query causes the load to go through a limited self-test. The
testing does not alter the mode or parameter settings of the load.
Command Syntax: *TST?
Returned Parameter: <NR1> 0 = test passed None0= a selftest failure
*WAI
This command instructs the load not process any further commands until all pending operations are completed. All pending
operations are complete including all pending trigger levels have
triggered. *WAI can be aborted only by sending the load a GPIB
DCL (Device Clear) command.
Parameter: None
Related Commands: *OPC *OPC?
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5
2.2
SCPI Root Commands
[SOURce:]CURRent[:LEVeI]:TRIGgered [:AMPLitude]
( :ROOT)
[SOURce:]
MODE
CURRent
[:LEVel]
[:IMMediate]
TRANsient
[:STATe]
:MODE
:LTIMe
INPut
[:STATe]
STATus
:QUEStionable
:SHORt
[:EVENt]?
[:STATe]
[:AMPLitude]
:CONDition?
:LATCh
:LOW
LIST
:ENABle
[:STATe]
:HIGH
[:STATe]
:ENABle?
:VOLTage
:TRIGgered
:MEMO
:OPERation
[:LEVel]
Specifies the current trigger level for the load. It shares the same
current range with the immediate current. The current trigger level
becomes the immediate current level only when the trigger signal
has been received.
Command Syntax: [SOURce:]CURRent [:LEVel]:TRIGgered [:AMPLitude]
<NRf+>
Parameter: Digits |MIN|MAX
Unit: A|mA
Example: CURR:TRIG 5A CURR:TRIG 50mA
Query Syntax: [SOURce:]CURRent[:LEVeI]:TRIGgered [:AMPLitude]?
Parameter: None |MIN|MAX
Example: CURR:TRIG? CURR:TRIG? MIN CURR:TRIG? MAX
Returned Parameter: <NR3>
Related Commands: INIT, INIT:CONT
[:AMPLitude]
:NUMBer
:RISE
MEASure
SYSTem
:COUNt
:RATE
VOLTage
[:LEVeI]
[:IMMediate]
[:SCALar]
:ERRor
:CHAin
:CURRent
[:NEXT]?
:SAVE
[:DC]?
:VERSion?
:CLEar
:VOLTage
:REMote
[:AMPLitude]
:LOW
[:DC]?
BATTery
:REMote
[:STATe]
RESistance
[:LEVeI]
[:IMMediate]
:LOCal
TRIGger
:TERMinate
[:IMMediate]
:VOLTage
:SOURce
:CAPacity
:UPDate
:UPDate
:CODE
:FUNCtion
[:AMPLitude]
:CLEar
:LOW
ABORt
POWer
[:LEVeI]
[:IMMediate]
[:AMPLitude]
2.2.1 ABORt
This command cancels all pending [:LEVel]:TRIG operations (such
as CURR:TRIG). As a result, subsequent triggers have no effect
on the input level. ABORt has no effect on the Transient operation
and List (Sequence) operation.
Command Syntax: ABORt
Parameter: None
Example: ABOR
Query Syntax: None
Related Commands: CURR[:LEVel]:TRIG, VOLT[:LEVel]:TRIG,
RES[:LEV]:TRIG, STAT:OPER:COND?
2.2.2 CURRent Subsystem
[SOURce:]CURRent[:LEVel] [:IMMediate] [:AMPLitude]
Specifies the immediate current level for the load. CURR? MIN
and CURR? MAX return the maximum and minimum current level
for the present range. If the set level exceeds the range, an error
will be generated.
Command Syntax: [SOURce:]CURRent [:LEVel] [:IMMediate]
<NRf+>
Parameters: Digits |MIN|MAX
Unit: A|mA
Example: CURR 25A
Query Syntax: [SOURce:]CURRent[:LEVel] [:IMMediate] [:AMPLitude]?
Parameter: None |MIN|MAX
Example: CURR? CURR? MIN CURR? MAX
Returned Parameter: <NR3>
Related Commands: CURR:LOW; CURR:TRIG, CURR:RISE:RATE
6
[SOURce:]CURRent:PROTection[:LEVel]
Specifies the current limit at which software protection occurs.
The current limit range is 0-30 A respective 0-40 A. When the current protection is enabled, the actual current exceeds or equals to
the current limit for software protection, and the load enters into
the current protection status. When the input current reaches the
current limit for the specified delay period, the load input is turned
off.
Command Syntax: [SOURce:]CURRent:PROTection[:LEVel]
<NRf+>
Parameter: Digits |MIN|MAX
Unit: A|mA
Example: CURR:PROT 15A
Query Syntax: [SOURce:]CURRent:PROTection[:LEVel]?
Parameter: None |MIN|MAX
Example: CURR:PROT? CURR:PROT? MIN CURR:PROT? MAX
Returned Parameter: <NR3>
Related Commands: CURR:PROT:STAT, CURR:PROT:DEL,
INP:PROT:CLE
[SOURce:]CURRent:PROTection:DELay
Specifies time for which protection current limit may be exceeded.
The delay period is calculated after the actual current reaches or
exceeds the protection current limit. When the delay period is
reached, the load input will be turned off.
Command Syntax: CURRent:PROTection:DELay <NRf+>
Parameter: Digits |MIN|MAX
Unit: s|ms
Example: CURRent:PROTection:DELay 0.5
Query Syntax: [SOURce:]CURRent:PROTection:DELay?
Parameter: None |MIN|MAX
Example: CURR:PROT:DEL? ; CURR:PROT:DEL?MIN ;
CURR:PROT:DEL? MAX
Returned Parameter: <NR3>
Related Commands: INP:PROT:CLE, CURR:PROT
[SOURce:]CURRent:PROTection:STATe
Disables/Enables current protection function.
Command Syntax: [SOURce:]CURRent:PROTection:STATe
<bool>
Parameter: ON|OFF
Example: CURR:PROT:STAT ON
Query Syntax: [SOURce:]CURRent:PROTection:STATe?
Parameter: None
Example: CURR:PROT:STAT?
Returned Parameter: <NR1> Value 0=OFF, 1=ON
Related Commands: CURR:PROT, INP:PROT:CLE
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[SOURce:]CURRent:[LEVel]:LOW
2.2.3 VOLTage Subsystem
Specifies the transient current low level, which shares the same
range with the immediate current level.
Command Syntax: [SOURce:]CURRent:[LEVel]:LOWl <NRf+>
Parameter: Digits |MIN|MAX
Unit: A|mA
Example: CURR:LOW 3
Query Syntax: [SOURce:]CURRent:[LEVel]:LOW?
Parameter: None |MIN|MAX
Example: CURR:[LEVel]:LOW? CURR:[LEVel]:LOW? MIN
CURR:[LEVel]:LOW? MAX
Returned Parameter: <NR3>
Related Commands: CURR:LOW
[SOURce:]VOLTage[:LEVeI][:IMMediate][:AMPLitude]
[SOURce:]CURRent:[LEVel]:HIGH
Specifies the transient current high level, which shares the same
range with the immediate current level.
Command Syntax: [SOURce:]CURRent:[LEVel]:HIGHl <NRf+>
Parameter: Digits |MIN|MAX
Unit: A|mA
Example: CURR:HIGH 3
Query Syntax: [SOURce:]CURRent:[LEVel]:HIGH?
Parameter: None |MIN|MAX
Example: CURR:[LEVel]:HIGH? CURR:[LEVel]:HIGH? MIN
CURR:[LEVel]:HIGH? MAX
Returned Parameter: <NR3>
Related Commands: CURR:HIGH
[SOURce:]CURRent:RISE:RATE
Specifies the current rise rate in CC mode. CURR:RISE:RATE?
MIN and CURR:RISE:RATE? MAX return the maximum and minimum rise rate for the present range.
Command Syntax: [SOURce:]CURRent:RISE:RATE <NRf+>
Parameter: Digits |MIN|MAX
Unit: A|mA/us
Example: CURRent:RISE:RATE 3A
Query Syntax: [SOURce:]CURRent:RISE:RATE?
Parameter: None |MIN|MAX
Example: CURR:RISE:RATE? CURR:RISE:RATE? MIN
CURR:RISE:RATE? MAX
Returned Parameter: <NR3>
Related Commands: CURR:FALL:RATE
[SOURce:]CURRent:FALL:RATE
Specifies the current fall rate in CC mode, which shares the same
range with the current rise rate.
Command Syntax: [SOURce:]CURRent:FALL:RATE <NRf+>
Parameter: Digits |MIN|MAX
Unit: A|mA/us
Example: CURR:FALL:RATE 3A
Query Syntax: [SOURce:]CURRent:FALL:RATE?
Parameter: None |MIN|MAX
Example: CURR:FALL:RATE? CURR:FALL:RATE? MIN
CURR:FALL:RATE? MAX
Returned Parameter: <NR3>
Related Commands: CURR:RISE:RATE
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Specifies the immediate voltage level for the load. VOLT? MIN and
VOLT? MAX return the maximum and minimum voltage level for
the present range. If the set level exceeds the range, an error will
be generated.
Command Syntax: [SOURce:]VOLTage[:LEVel][:IMMediate][:AMPLitude]
<NRf+>
Parameter: Digits |MIN|MAX
Unit: V|mV
Example: VOLT 5V
Query Syntax: [SOURce:]VOLTage[:LEVel][:IMMediate][:AMPLitude]?
Parameter: None |MIN|MAX
Example: VOLT? VOLT? MIN VOLT? MAX
Returned Parameter: <NR3>
Related Commands: CURRent, RESistance
[SOURce:]VOLTage[:LEVeI]:TRIGgered[:AMPLitude]
Specifies the voltage trigger level for the load. It shares the same
range with the immediate voltage. The voltage trigger level
becomes the immediate voltage level only when the trigger signal
has been received.
Command Syntax: [SOURce:]VOLTage[:LEVel]:TRIGgered[:AMPLitude]
<NRf+>
Parameter: Digits |MIN|MAX
Unit: V|mV
Example: VOLT:TRIG 5V
Query Syntax: [SOURce:]VOLTage[:LEVel]:TRIGgered[:AMPLitude]?
Parameter: None |MIN|MAX
Example: VOLT:TRIG? VOLT:TRIG? MIN VOLT:TRIG? MAX
Returned Parameter: <NR3>
Related Commands: INIT, INIT:CONT, TRIG
[SOURce:]VOLTage:[LEVel]:LOW
Specifies the transient voltage low level, which shares the same
range with the immediate voltage level.
Command Syntax: [SOURce:]VOLTage:[LEVel]:LOW <NRf+>
Parameter: Digits |MIN|MAX
Unit: V|mV
Example: VOLT:LOW 5V
Query Syntax: [SOURce:]VOLTage:[LEVel]:LOW?
Parameter: None |MIN|MAX
Example: VOLT::LOW? VOLT::LOW? MAX VOLT::LOW? MIN
Returned Parameter: <NR3>
Related Commands: VOLT:HIGH, TRAN:LTIM
[SOURce:]VOLTage:[LEVel]:HIGH
Specifies the transient voltage high level, which shares the same
range with the immediate voltage level.
Command Syntax: [SOURce:]VOLTage:[LEVel]:HIGH <NRf+>
Parameter: Digits |MIN|MAX
Unit: V|mV
Example: VOLT:HIGH 5V
Query Syntax: [SOURce:]VOLTage:[LEVel]:HIGHl?
Parameter: None |MIN|MAX
Example: VOLT:HIGH? VOLT:HIGH? MIN VOLT:[LEVel]:HIGH? MAX
Returned Parameter: <NR3>
Related Commands: VOLT:LOW, TRAN:HTIM
7
2.2.4 RESistance Subsystem
2.2.5 POWer Subsystem
[SOURce:]RESistance[:LEVeI][:IMMediate][:AMPLitude]
[SOURce:]POWer[:LEVeI] [:IMMediate][:AMPLitude]
Specifies the immediate resistance level for the load. RES? MIN
and RES? MAX return the maximum and minimum resistance
level for the present range. If the set level exceeds the range, an
error will be generated.
Command Syntax: [SOURce:]RESistance[:LEVeI][:IMMediate]
[:AMPLitude] <NRf+>
Parameter: Digits |MIN|MAX
Unit: OHM|mOHM|kOHM
Example: RES 10 OHM
Query Syntax: [SOURce:]RESistance[:LEVeI][:IMMediate]?
Parameter: None |MIN|MAX
Example: RES? RES? MIN RES? MAX
Returned Parameter: <NR3>
Related Commands: CURRent, VOLTage
Specifies the power level. POW? MIN and POW? MAX return the
maximum and minimum power level for the present range. If the
set level exceeds the range, an error will be generated.
Command Syntax: [SOURce:]POWer[:LEVeI][:IMMediate]
[:AMPLitude]<NRf+>
Parameter: Digits |MIN|MAX
Unit: W|mW
Example: POW 10W
Query Syntax: [SOURce:]POWer[:LEVel][:IMMediate][:AMPLitude]?
Parameter: None |MIN|MAX
Example: POW? POW? MIN POW? MAX
Returned Parameter: <NR3>
Related Commands: POWer:TRIGgered
[SOURce:]POWer[:LEVeI]:TRIGgered[:AMPLitude]
[SOURce:]RESistance[:LEVeI]:TRIGgered[:AMPLitude]
Specifies the resistance trigger level for the load. It shares the
same range with the immediate resistance level. The resistance
trigger level becomes the immediate resistance level only when
the trigger signal has been received.
Command Syntax: [SOURce:]RESistance[:LEVel]:TRIGgered
[:AMPLitude] <NRf+>
Parameter: Digits |MIN|MAX
Unit: OHM|mOHM|kOHM
Example: RES: TRIG 3 OHM
Query Syntax: [SOURce:]RESistance[:LEVel]:TRIGgered[:AMPLitude]?
Parameter: None |MIN|MAX
Example: RES:TRIG? RES:TRIG? MIN RES:TRIG? MAX
Returned Parameter: <NR3>
Related Commands: INIT, INIT:CONT
Specifies the power trigger level. It shares the same range with
the power level. The power trigger level becomes the power level
only when the trigger signal has been received.
Command Syntax: [SOURce:]POWer[:LE'Vel]:TRIGgered
[:AMPLitude]<NRf+>
Parameter: Digits |MIN|MAX
Unit: W|mW
Example: POW:TRIG 10w
Query Syntax: [SOURce:]POWer[:LEVel]:TRIGgered[:AMPLitude]?
Parameter: None |MIN|MAX
Example: POW:TRIG? POW:TRIG? MIN POW:TRIG? MAX
Returned Parameter: <NR3>
Related Commands: INIT, INIT:CONT
2.2.6 INPut Subsystem
[SOURce:]RESistance:[LEVel]:LOW
INPut[:STATe]
Specifies the transient resistance low level, which shares the
same range with the immediate resistance level.
Enables/Disables the load input.
Command Syntax: INPut[:STATe] <bool>
Parameter: ON |OFF
Example: INP ON
Query Syntax: INPut[:STATe]?
Parameter: None
Example: INP?
Returned Parameter: <NRI> Value:0(OFF) 1(ON)
Related Commands: INP:SHOR
Command Syntax: [SOURce:]RESistance:[LEVel]:LOW <NRf+>
Parameter: Digits |MIN|MAX
Unit: OHM
Example: RES:LOW 3 OHM
Query Syntax: [SOURce:]RESistance:LOW?
Parameter: None |MIN|MAX
Example: RES:LOW? RES:LOW? MIN RES:LOW? MAX
Returned Parameter: <NR3>
Related Commands: RESistance:HIGH, TRAN:HTIMe
[SOURce:]RESistance:[LEVel]:HIGH
Specifies the transient voltage high level, which shares the same
range with the immediate resistance level.
Command Syntax: [SOURce:]RESistance:[LEVel]:HIGH <NRf+>
Parameter: Digits |MIN|MAX
Unit: OHM
Example: RES:HIGH 3 OHM
Query Syntax: [SOURce:]RESistance[:LEVEL]:HIGH?
Parameter: None |MIN|MAX
Example: RES:HIGH? RES:HIGH? MIN RES:HIGH? MAX
Returned Parameter: <NR3>
Related Commands: RESistance:HIGH, TRAN:HTIMe
8
INPut:SHORt[:STATe]
Enables/Disables the short circuit of the load.
Command Syntax: INPut:SHORt[:STATe] <bool>
Parameter: ON |OFF
Example: INP:SHOR ON
Query Syntax: INPut:SHORt[:STATe]?
Parameter: None
Example: INP:SHOR?
Returned Parameter: <NR1> Value:0(OFF) 1(ON)
Related Commands: INP[:STAT]
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INPut:PROTection:CLEar
TRANsient:MODE
Clears the protection status (OC, OV, OP, OT, RV) of the load.
Command Syntax: INPut:PROTection:CLEar
Parameter: None
Example: INP:PROT:CLE
Query Syntax: None
Related Commands: INP
Sets the transient operating mode. There are three transient operating modes: Continuous, Pulsed, and Toggled.
Command Syntax: TRANsient:MODE <aard>
Parameter: CONTinuous|PULSe|TOGGle
Example: TRAN:MODE PULS
Query Syntax: TRANsient:MODE?
Returned Parameter: <aard>CONT, PULS, or TOGG
Related Commands: TRIGger
INPut:LATCh:VOLTage[:LEVEL]
Specifies the Von voltage point. If the load is power on, it will be
enabled when the external input voltage reaches or exceeds the
Von point.
Command Syntax: INPut:LATCh:VOLTage[:LEVEL] <NRf+>
Parameter: Digits |MIN|MAX
Unit: V|mV
Example: INP:LATC:VOLT 2
Query Syntax:INPut:LATCh:VOLTage[:LEVEL]?
Parameter: None |MIN|MAX
Example: INP:LATC:VOLT?; INP:LATC:VOLT?MIN; INP:LATC:VOLT?MAX
Returned Parameter: <NR3>
Related Commands: INP:LATC
INPut:LATCh[:STATe]
Enalbes/Disables the Von Latch of the load. If the actual voltage is
less than Von point after the load has been enabled, there are two
circumstances for the load at this time: if the Von Latch is
enabled, the load continues operating; if the Von Latch is disabled, the load is turned off.
Command Syntax: INPut:LATCh[:STATe] <bool>
Parameter: ON/OFF
Example: INP:LATC ON
Query Syntax: INPut:LATCh[:STATe]?
Parameter: None
Example: INP:LATC?
Returned Parameter: <NRI> Value:0(OFF) 1(ON)
Related Commands: INP:LATC:VOLT
INPut:LIMit[:CV]:CURRent
Sets the maximum current limit when the load is in the CV mode.
Command Syntax: INPut:LIMit[:CV]:CURRent <NRf+>,
Parameter: Digits |MIN|MAX
Unit: A|mA
Example: INP:LIM:CURR 20
Query Syntax: INPut:LIMit[:CV]:CURRent?
Parameter: None |MIN|MAX
Example: INP:LIM:CURR? INP:LIM:CURR? MIN
INP:LIM:CURR? MAX
Returned Parameter: <NR3>
Related Commands: CURRent
2.2.7 TRANsient Subsystem
[SOURce:]TRANsient [:STATe]
Enables/Disables the transient operation.
Command Syntax: TRANsient[:STATe] <bool>
Parameter: ON|OFF
Example: TRAN ON
Query Syntax: TRAN[:STATe]?
Returned Parameter: <NR1> Value:0 for OFF, 1for ON
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TRANsient:HTIMe
Sets transient high level time.
Command Syntax: TRANsient:HTIMe <NRf+>
Parameter: Digits |MIN|MAX
Unit: mS|uS
Example: TRANsient:HTIMe 500ms
Query Syntax: TRANsient:HTIMe?
Parameter: None |MIN|MAX
Example: TRAN:HTIMe? TRAN:HTIMe? MIN TRAN:HTIMe?
MAX
Returned Parameter: <NR3>
Related Commands: TRAN:LTIM
TRANsient:LTIMe
Sets transient low level time.
Command Syntax: TRANsient:LTIMe <NRf+>
Parameter: Digits |MIN|MAX
Unit: mS|uS
Example: TRANsient:LTIMe 500ms
Query Syntax: TRANsient:LTIMe?
Parameter: None |MIN|MAX
Example: TRAN:LTIMe? TRAN:LTIMe? MIN TRAN:LTIMe? MAX
Returned Parameter: <NR3>
Related Commands: TRAN:HTIM
TRANsient:RTIMe
Sets the time for transient rising edge.
Command Syntax: TRANsient:RTIMe <NRf+>
Parameter: Digits |MIN|MAX
Unit: mS|uS
Example: TRANsient:RTIMe 500ms
Query Syntax: TRANsient:RTIMe?
Parameter: None |MIN|MAX
Example: TRAN:RTIMe? TRAN:RTIMe? MIN TRAN:RTIMe? MAX
Returned Parameter: <NR3>
Related Commands: TRAN:FTIM
TRANsient:FTIMe
Sets the time for transient falling edge.
Command Syntax: TRANsient:FTIMe <NRf+>
Parameter: Digits |MIN|MAX
Unit: mS|uS
Example: TRANsient:FTIMe 200ms
Query Syntax: TRANsient:FTIMe?
Parameter: None |MIN|MAX
Example: TRAN:FTIMe? TRAN:FTIMe? MIN TRAN:FTIMe? MAX
Returned Parameter: <NR3>
Related Commands: TRAN:RTIM
9
2.2.8 LIST Subsystem
[SOURce:]LIST[:STEP]:DELete
[SOURce:]LIST:CLEar
Deletes one specified step.
Command Syntax: [SOURce:]LIST[:STEP]: DELete <NR1>
Parameter: 1~50
Unit: None
Example: LIST:DELete 2
Related Commands: LIST:ADD, LIST:INS
Initializes the list data of the present list.
Command Syntax: LIST:CLEar
Parameter: None
Example: LIST:CLEar
[SOURce:]LIST[:STATe]
Enables/Disables the list operation.
Command Syntax: [SOURce:]LIST[:STATe] <bool>
Parameter: On|Off
Example: LIST on LIST off
Query Syntax: [SOURce:]LIST[:STATe]?
Returned Parameter: <NR1> Value:0 for OFF, 1for ON
Related Commands: LIST:NUMB, LIST:CONT
[SOURce:]LIST:CLEar
Deletes all steps for list operation.
Command Syntax: [SOURce:]LIST:CLEar
Parameter: None
Example: LIST:SAVE
Related Commands: LIST:CLE
[SOURce:]LIST:COUNt
[SOURce:]LIST:MEMO
Sets the Memo of the list.
Command Syntax: [SOURce:]LIST: MEMO “<aard>”
Parameter: “0x20-0x7f”
Example: LIST: MEMO “GMC”
Query Syntax: [SOURce:]LIST:MEMO?
Returned Parameter: <aard>
Related Commands: LIST:NUMB, LIST:CONT
[SOURce:]LIST:NUMBer
Sets the list number for the list operation.
Command Syntax: LIST:NUMBer <NR1>
Parameter: 0~6
Example: LIST:NUMB 2
Query Syntax: [SOURce:]LIST:NUMBer?
Returned Parameter: <NR1> 0~6
Related Commands: LIST:ADD, LIST:CONT
[SOURce:]LIST[:STEP]:ADD
Adds a new step. The values for each new step include operating
mode, load value, operating time.
Command Syntax: [SOURce:]LIST[:STEP]:ADD
<aard>,<NRf>,<NRf>
Parameter: CCL|CCH|CRL|CRM |CRH|CV, Digits |MIN|MAX, Digits
|MIN|MAX
Unit: None, Current Unit| Voltage Unit| Resistance Unit, s
Example: LIST:ADD cch,1a,1s
Related Commands: LIST:DEL, LIST:INS
[SOURce:]LIST[:STEP]:INSert
Inserts a new step at specified step.
Command Syntax: [SOURce:]LIST[:STEP]:INSert
<NR1>,<aard>,<NRf>,<NRf>
Parameter: 1~50,CCL|CCH|CRL|CRM |CRH|CV, Digits |MIN|MAX,
Digits |MIN|MAX
Unit: None, None, Current Unit| Voltage Unit| Resistance Unit, s
Example: LIST:INSert 2,cch,2a,1s
Related Commands: LIST:DEL, LIST:ADD
Sets the cycle times (Count) for list operation.
Command Syntax: [SOURce:]LIST:COUNt <NR1>
Parameter: 0~65535
Unit: None
Example: LIST:COUNt 10
Query Syntax: LIST:COUNt?
Returned Parameter: <NR1>
Related Commands: LIST:NUMB, LIST:EDIT
[SOURce:]LIST:CHAIn
Sets the chained list for the present list.
Command Syntax: [SOURce:]LIST:CHAIn <NR1>
Parameter: 0~6|OFF
Example: LIST:CHA 2
Query Syntax: LIST:CHA?
Returned Parameter: <NR1>
Related Commands: LIST:NUMB, LIST:MEMO
[SOURce:]LIST:SAVe
Saves the list date according to the list number.
Command Syntax: [SOURce:]LIST:SAVe
Parameter: None
Example: LIST:SAVE
Related Commands: LIST:CLE
2.2.9 MODE
MODE
Sets the basic test mode for the load.
CC Mode CCL
CCH
CV Mode CV
CP Mode CPC
CPV
CR Mode CRL
CRM
CRH
Command Syntax: MODE <AARD>
Parameter: CCL|CCH|CRL| CRM|CRH|CV|CPC|CPV
Example: MODE CCL
Query Syntax: [SOURce:]MODE?
Returned Parameter: <AARD> CCL|CCH|CRL|
CRM|CRH|CV|CPC|CPV
[SOURce:]LIST[:STEP]:EDIT
Edits one specified step.
Command Syntax: [SOURce:]LIST[:STEP]:EDIT
<NR1>,<aard>,<NRf>,<NRf>
Parameter: 1~50,CCL|CCH|CRL|CRM |CRH|CV, Digits|MIN|MAX,
Digits|MIN|MAX
Unit: None, None, Current Unit| Voltage Unit| Resistance Unit, s
Example: LIST:EDIT 2,cch,3a,1s
10
GMC-I Messtechnik GmbH
2.2.10 MEASure
STATus:QUEStionable:ENABle
MEASure[:SCALar]:VOLTage[:DC]?
Sets the bits of the Questionable Status Enable register. The programming parameters determine whether or not a 0 to 1 transition
in the Questionable Event register will set the QUES bit of the Status Byte register. See Status Reporting for more details concerning the Questionable Status Enable register.
Command Syntax: STATus:QUEStionable:ENABle <NRf>
Parameter: 0?65535
Power-on Value: refers to *PSC command
Example: STATus:QUEStionable:ENABle 64
Query Syntax: STATus:QUEStionable:ENABle?
Returned Parameter: <NR1>
Related Commands: *PSC
Queries the input voltage of the load.
Command Syntax: MEASure[:SCALar]:VOLTage[:DC]?
Parameter: None
Query Syntax: MEAS:VOLT?
Returned Parameter: <NR3>
Related Commands: MEAS:CURR?, MEAS:RES?, MEAS:POW?
MEASure[:SCALar]:CURRent[:DC]?
Queries the input current of the load.
Command Syntax: MEASure[:SCALar]:CURRent[:DC]?
Parameter: None
Query Syntax: MEAS:CURR?
Returned Parameter: <NR3>
Related Commands: MEAS:VOLT?, MEAS:RES?, MEAS:POW?
MEASure[:SCALar]:POWer[:DC]?
Queries the input power of the load.
Command Syntax: MEASure[:SCALar]:POWer[:DC]?
Parameter: None
Query Syntax: MEAS:POW?
Returned Parameter: <NR3>
Related Commands: MEAS:CURR?, MEAS:VOLT?, MEAS:RES?
MEASure[:SCALar]:RESistance[:DC]?
Queries the input resistance of the load.
Command Syntax: MEASure[:SCALar]:RESistance[:DC]?
Parameter: None
Query Syntax: MEAS:RES?
Returned Parameter: <NR3>
Related Commands: MEAS:CURR?, MEAS:VOLT?, MEAS:RES?
2.2.11 STATus Subsystem
STATus:QUEStionable[:EVENt]?
This query reads the Questionable Status Event register, and
returns a decimal value, which equals to the total weighted value
of all binary bits. Reading this register resets it to zero. See Status
Reporting for more details concerning the Questionable Status
Event register.
Query Syntax: STATus:QUEStionable[:EVENt]?
Parameter: None
Returned Parameter: <NR1>
STATus:OPERation[:EVENt]?
This query reads the Operation Event register. Reading this register resets it to zero. See Status Reporting for more details concerning the Operation Event register.
Query Syntax: STATus:OPERation [:EVENt]?
Parameter: None
Returned Parameter: <NR1>
STATus:OPERation:CONDition?
This query reads the Operation Status Condition register. Each 0
to 1 transition of the condition of the Operation Condition register
will set the corresponding bit of the Operation Event register. See
Status Reporting for more details concerning the Operation Status Condition register.
Query Syntax: STATus:OPERation:CONDition?
Parameter: None
Returned Parameter: <NR1>
STATus:OPERation:ENABle
Sets the bits of the Operation Status Enable register. The programming parameters determine whether or not a 0 to 1 transition
in the Operation Event register will set the OPER bit of the Status
Byte register. See Status Reporting for more details concerning
the Operation Status Enable register.
Command Syntax: STATus:OPERation:ENABle <NRf>
Parameter: 0?255
Power-on Value: refers to *PSC command
Example: STATus:OPERation:ENABle 128
Query Syntax: STATus:OPERation:ENABle?
Returned Parameter: <NR1>
Related Commands: *PSC
STATus:QUEStionable:CONDition?
This query reads the Questionable Status Condition register. Each
0 to 1 transition of the condition of the Questionable Condition
register will set the corresponding bit of the Questionable Status
Event register. See Status Reporting for more details concerning
the Questionable Status Condition register.
Query Syntax: STATus:QUEStionable:CONDition?
Parameter: None
Returned Parameter: <NR1>
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11
2.2.12 SYSTem
2.2.13 TRlGger Subsystem
SYSTem:ERRor[:NEXT]?
TRIGger[:IMMediate]
Queries the error code and error message of the load. When the
“ERR” annunciator on the front panel is turned on, one or more
errors have occurred to the load. At most 20 error records can be
saved in the load. It will be not saved if the error records exceed
20.
1 The error queue operates in a FIFO (first-in, first-out) mode to
save and read the error. The first returned error is the first
saved error. When all errors have been read, the ““ERR”
annunciator will be turned off automatically.
2 If the error records exceed 20, the last error in the error queue
will be replaced by 350, “Too many errors”. The load will not
save any additional error message, unless you clear or read
errors from the queue.
3 If there is no error occurs to the executing command, “No
error” will be returned.
*CLS can clear the error queue, while *RST can not. All error
records will be lost after the load is turned off.
Command Syntax: SYST:ERR[:NEXT]?
Parameter: None
Returned Parameter: <NR1>?<AARD>
This command generates a trigger signal to the load, regardless
of which trigger source is currently in effect. It has the same function as the *TRG command.
Command Syntax: TRIGger[:IMMediate]
Parameter: None
Related Commands: TRIG:SOUR
SYSTem:VERSion?
Queries the software version number, e.g. V1.00.
Command Syntax: SYST:VERS?
Parameter: None
Returned Parameter: <AARD>?<NR2>
SYSTem:REMote
Sets the load in Remote status. An error message will be generated when the load is communicated via GPIB port.
Command Syntax: SYSTem:REMote
Parameter: None
Returned Parameter: None
Related Commands: SYSTem:LOCal
SYSTem:LOCal
Sets the load in Local status. An error message will be generated
when the load is communicated via GPIB port.
Command Syntax: SYSTem:LOCal
Parameter: None
Returned Parameter: None
Related Commands: SYSTem:REMote
12
TRIGger:SOURce
Selects the load trigger source. There are three trigger sources:
BUS, EXTernal, HOLD.
BUS: Accepts a GPIB <GET> signal or *TRG command as the
trigger source.
EXTernal: Selects the External trigger input terminal or key on the
front panel as the trigger source. The input signal at the External
trigger input terminal is TTL; the falling edge is triggered.
HOLD: Only the TRIGger:IMMediate command causes a trigger in
this mode. All others, including *TRG, are ignored.
Command Syntax: TRIGger:SOURce <aard>
Parameter: BUS| EXTernal| HOLD
Example: TRIG:SOUR EXT
Query Syntax: TRIGger:SOURce?
Returned Parameter: <aard>
TRIGger:FUNCtion
Sets Transient (Tran) or List function for the trigger object.
Command Syntax: TRIGger:FUNCtion <aard>
Parameter: Tran| List
Query Syntax: TRIGger:FUNCtion?
Example: TRIG:FUNC LIST
Returned Parameter: <aard>Tran| List
INITiate[:IMMediate]
Activates the trigger input terminal once. After a trigger signal has
been received it is automatically deactivated again
Command Syntax:INITiate [:IMMediate]
Paramater: None
Example: INIT
Related Commands: *TRG
INITiate:CONtinuous
Activates the trigger input terminal permanently.
Command Sytax: INITiate:CONtinuous 1
Parameter: ON(1) OFF(0)
Example: INIT:CONT1
Returned Parameter: <NR1> Value: 0 for OFF, 1 for ON
Related Commands: *TRG
GMC-I Messtechnik GmbH
2.2.14 ATTery Subsystem
[SOURce:]BATTery[:STATe]
Enables/Disables the Battery Discharge operation.
Command Syntax: [SOURce:]BATTery[:STATe] <bool>
Parameter: ON|OFF
Example: BATT on;
Query Syntax: [SOURce:]BATTery[:STATe]?
Example: BATT?
Returned Parameter: <NR1> Value:0(OFF) 1(ON)
Related Commands: INP ON
[SOURce:]BATTery:TERMinate:VOLTage
Sets termination voltage value for the battery discharge operation.
The battery voltage can not be less than the termination voltage
value, or the battery discharge test will be stopped automatically.
Command Syntax: [SOURce:]BATTery:TERMinal:VOLTage <NRf+>
Parameter: Digits |MIN|MAX
Unit: V|mV
Example: BATT:TERM:VOLT 2V
Parameter: None |MIN|MAX
Query Syntax: [SOURce:]BATTery:TERMinal:VOLTage:?
Example: BATT:TERM:VOLT? BATT:TERM:VOLT? MAX;
BATT:TERM:VOLT? MIN
Returned Parameter: <NR3>
Related Commands: VOLT?
3
Error Messages
Table 3-1 lists the error numbers and associated error messages
that apply to the electronic load.
Table 3-1. Summary of Error Messages
Error Number
Error Description
-103
Invalid separator
There is invalid separator existed in command string. You may use
the comma to replace the colon, semicolon, or space; or you may
use the space to replace the colon.
-104
Data type error
You may specify a digit where the character string is required, or you
may specify a character string where a digit is required.
-108
Missing parameter, or Parameter not allowed.
Received few parameters. One or more parameters are missing; Received too many parameters. You may have input extra parameters,
or added the parameter into the command where no parameter is allowed.
-113
Undefined header
You may have misspelled the command, or the command is invalid. If
you use the command of short form, only four letters can be included
at most.
-123
Exponent too large
-131
Invalid suffix
You may misspell a wrong suffix.
-170
Expression error
You may start an expression with single quotation mark, and end it
with a double quotation mark.
-210
Command not allowed with GPIB
-221
LIST out of range
[SOURce:]BATTery:DIScharge:CURRent
-222
Data out of range
Sets the battery discharge current.
Command Syntax: [SOURce:]BATTery:DIScharge:CURRent
<NRf+>
Parameter: Digits |MIN|MAX
Unit: A|mA
Example: BATT:CURR 1A
Query Syntax: [SOURce:]BATTery[:DIScharge]:CURRent?
Parameter: None |MIN|MAX
Returned Parameter: <NR3>
Related Commands: BATT:VOLT
-223
Too much data
Received the character string, but it can not be executed because the
string length exceeds the allowed character numbers.
-330
Self-test failed
One or more errors are detected when it is self-testing.
-350
Too many errors
The existing errors exceed 20, and the error queue becomes full. The
error queue cannot save any new error unless the existing errors
have been deleted. Turning off the power or executing *CLS command will clear the error queue.
-410
Query INTERRUPTED
Receive the command to send data to the output buffer, but the data
sent by the previous command is contained in the output butter (the
previous data is not covered). Turning off the power or executing
*RST command will clear the output buffer.
-440
Query UNTERMINATED
Addressed to talk (sending data via the interface), but the command
of sending data to the output buffer is not received.
[SOURce:]BATTery:CAPAcity:CLEar
Queries the discharged capacity of the battery.
Command Syntax: BATTery:CAPAcity:CLEar
Parameter: None
Example: BATT:CAPA:CLE
Returned Parameter: <NR3>
[SOURce:]BATTery[:DISCharge]:TIME?
Queries the discharged time of the battery.
Command Syntax: [SOURce:]BATTery[:DISCharge]:TIME?
Example: BATT:TIME?
Returned Parameter: <NR1>:<NR1>:<NR1>(Hour: Minute: Second)
Related Commands: BATT:VOLT
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13
4
Status Register Reporting
BIT
Signal
SCPI Status Register
The electronic load has four status register to record its status.
They are the Status Byte register, the Standard Event register, the
Questionable Status register, and the Operation Status register.
The Status Byte register summarizes all of the status events from
all status registers. The list below is the description for all status
registers.
Meaning
Operation Status register
0
CAL
A calibration calculation is in progress.
1
WTG
Waiting for trigger.
0
VF
Voltage Error
It is caused by the reversed voltage or the over-voltage;
VF remains set till the “INP:PROT:CLE” is received.
1
OV
Over-voltage
When the Over-voltage occurs, the load is turned off, and
OV/OF is set at the same time. OV/OF remain set till the
over-voltage condition is removed and the
“INP:PROT:CLE” is received.
2
OC
Over-current
When the current exceeds the protection current limit, OC
is set, and remains set till the over-current condition is removed. However, if OC remain set for the specified delay
period, PS will be set, and the load is turned off. In this
case, PS/OC remain set till the over-current condition is
removed, and the “INP:PROT:CLE” is received.
3
OP
Over-power
When over-power occurs, the load is turned off, and OP/
PS are set. OP/PS remain set till the over-power condition
is removed, and the “INP:PROT:CLE” is received.
4
RV
Reverse Voltage on input
When reverse voltage occurs, RV/VF are set. RV is reset
after the reverse voltage is removed, but VF remains set
till the “INP:PROT:CLE” is received.
5
OT
Over-temperature
When over-power occurs, the load is turned off, and OP/
PS are set. OP/PS remain set till the temperature is reduced by the fan and the “INP:PROT:CLE” is received.
6
CC
Constant Current mode
7
CV
Constant Voltage mode
8
CP
Constant Power mode
9
CR
Constant Resistance mode
13
PS
Protection Shutdown
The electronic load is turned off due to over-current, overpower or over-temperature; the PS is set and remain set
till the “INP:PROT:CLE” is received.
0
OPC
Operation Complete
The load has completed all pending operations. Programming *OPC causes this bit to be set when the load completes al pending operations.
2
QYE
Query Error
The output queue was read when no data was present.
Errors in the range of -499 to -400 can set QYE.
3
DDE
Device Dependent Error
Memory was lost. Errors in the range of -399 to -300 can
set DDE.
4
EXE
Execution Error
A command parameter was outside the legal range or inconsistent with the electronic load` s operation, or the command
could not be executed due to some operating condition. Errors in the range of -299 to -200 can set EXE.
5
CME
Command Error
A syntax or semantic error has occurred. Errors in the
range of -199 to -100 can set CME.
7
PON
Power On
This bit is always set when the load is turned on.
3
QUES
Questionable
If an enabled questionable status register is affected, the
QUES is set.
4
MAV
Message Available
If the Output Queue contains data, the MAV is set.
5
ESB
Event Status Bit
If a Standard Event Enable register is affected, the ESB is set.
6
MSS RQS
During a serial poll, RQS (Request Service) is returned and
cleared. For an *STB? query, MSS (Master Summary Status) is returned without being cleared.
7
OPER
Operation
If an enabled Operation Status register is affected, the
OPER is set.
Questionable Status register
Standard Event register
Status Byte register
14
GMC-I Messtechnik GmbH
The following diagram shows the relationship among the load‘s
status registers.
GMC-I Messtechnik GmbH
15
5
Product Support
If required please contact:
GMC-I Messtechnik GmbH
Product Support Hotline
Phone: +49-911-8602-0
Fax:
+49 911 8602-709
E-mail: [email protected]
Erstellt in Deutschland • Änderungen vorbehalten • Eine PDF-Version finden Sie im Internet
GMC-I Messtechnik GmbH
Südwestpark 15
90449 Nürnberg • Germany
Telefon +49 911 8602-111
Telefax +49 911 8602-777
E-Mail [email protected]
www.gossenmetrawatt.com
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