User`s manual

32 Using the Relay Matrix Switches Chapter 2
Relay Matrix Switch
Query Commands
All query commands end with a "?". All data is sent to the output buffer
where you can retrieve it into your computer. The following are valid query
commands:
Power-on and Reset
Conditions
When power is first applied to the Relay Matrix Switch modules or *RST
(reset) is executed, all relays are open. This table lists the parameters

and default values for the switchbox functions described in this chapter.
Commands in brackets ( [ ] ) are implied and are not sent with the command.
Query Description
ARM:COUN? Number of Scanning Cycles
CLOS? Channel Closed
INIT:CONT? Scanning State
OPEN? Channel Open
OUTP:ECLT
n ? ECL Trigger Output State
OUTP:EXT? External Trigger Output State
OUTP:TTLT n ? TTL Trigger Output State
STAT:OPER:ENAB? Status Operation Enable
STAT:OPER[:EVEN]? Status Operation Event
SYST:CDES? <
number > Module Description
SYST:CTYP? <
number > Module Type
SYST:ERR? System Error
TRIG:SOUR? Trigger Source
Parameter Default Description
ARM:COUNt 1 Number of scanning cycles is 1
TRIGger:SOURce IMM Will advance scanning cycles
automatically
INITiate:CONTinuous OFF Number of scanning cycles set by
ARM:COUNt
OUTPut[:EXTernal][:STATe] OFF Trigger output from EXTernal,
TTLTrg, or ECLTrg sources is
disabled