
MST 488-27 013004
B-1
APPENDIX B - SCPI COMMAND/QUERY DEFINITIONS
B.1 INTRODUCTION This appendix defines the SCPI subsystem commands and queries used with
the MST 488-27 Controller. Subsystem commands are defined in PAR. B.2 through B.49,
arranged in groups as they appear in the tree diagram, Figure 3-2. Table B-1 provides a quick
reference of all SCPI subsystem commands and queries used in the Interface Card.
NOTE: Upon power loss, all programmed values/configurations are lost and must be repro-
grammed.
B.2 INITiate[:IMMediate]
COMMAND
INIT[:IMM]
Syntax: Short Form: INIT:[IMM] Long Form: INITiate[:IMMediate]
Description: Enables a single trigger. If INIT:CONT is OFF, then INIT[:IMM] arms the trigger system for a single
trigger. If INIT:CONT is ON, then the trigger system is continuously armed and INIT[:IMM] is redun-
dant. This command enables a single trigger. A GPIB <GET>, *TRG or command completes the
sequence. Upon receipt of the <GET> or *TRG command, the power supply will return to the pro-
grammed values of voltage and current established by the VOLT:TRIG and CURR:TRIG commands.
After a GPIB <GET> or *TRG command has been received, subsequent GPIB <GET>, *TRG com-
mands have no effect unless preceded by INIT or INIT:CONT ON. Related Commands: <GET>,
*RST, *TRG. (See example, Figure B-3.)
B.3 INITiate:CONTinuous COMMAND
INIT:CONT
Syntax: Short Form: INIT:CONT {ON | OFF} or {1 | 0} ( 1 = on, 0 = off)
Long Form: INITiate:CONTinuous {ON | OFF} or {1 | 0} ( 1 = on, 0 = off)
Description: INIT:CONT ON enables continuous triggers.; INIT:CONT OFF disables continuous triggers. If
INIT:CONT is OFF, then INIT[:IMM] arms the trigger system for a single trigger. If INIT:CONT is ON,
then the trigger system is continuously armed and INIT[:IMM] is redundant. Executing *RST command
sets INIT:CONT to OFF. (See example, Figure B-3.)
TABLE B-1. SCPI SUBSYSTEM COMMAND/QUERY INDEX
COMMAND PAR. COMMAND PAR.
INIT[:IMM] B.2 STAT:QUES[:EVENT]? B.28
INIT:CONT, ? B.3, B.4 STAT:QUES:COND? B.29
INST:CAT? B.5 STAT:QUES:ENAB, ? B.30, B.31
INST:NSEL B.6 STAT:QUES:INST[1]? B.32
INST:SEL B.7, B.8 STAT:QUES:INST2? B.33
INST:STAT B.9 STAT:QUES:INST[1]:ENAB, ? B.34, B.35
MEAS:CURR? B.10 STAT:QUES:INST2:ENAB, ? B.36, B.37
MEAS:VOLT? B.11 STAT:QUES:INST:ISUM? B.38
OUTP[:STAT], ? B.12, B.13 STAT:QUES:INST:ISUM:ENAB, ? B.39, B.40
[SOUR:]CURR[:LEV][:IMM][:AMP], ? B.14, B.15 SYST:COMM:GPIB:ADDR B.41
[SOUR:]CURR[:LEV]:TRIG[:AMP], ? B.16, B.17 SYST:COMM:SER:BAUD B.42
[SOUR:]VOLT[:LEV][:IMM][:AMP], ? B.18, B.19 SYST:COMM:SER:ECHO B.43
[SOUR:]VOLT[:LEV]:TRIG[:AMP]? B.20, B.21 SYST:COMM:SER:PACE B.44
[SOUR:]FUNC:MODE B.22 SYST:COMM:SER:PROM B.45
STAT:OPER:COND? B.23 SYST:ERR? B.46
STAT:OPER:ENAB, ? B.24, B.25 SYST:LANG B.47
STAT:OPER[:EVENT]? B.26 SYST:SET B.48
STAT:PRES B.27 SYST:VERS? B.49
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