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6.3.8 TRIGger subsystem
These commands in this subsystem are used to configure and control trigger measurement function and
are summarized in Table 6-8.
Table 6-8
TRIGger Subsystem Commands Summary
Command
Function Description
Default
:TRIGger
:SOURce <name>
:SOURce?
Select control source
Query control source
IMMediate
:TRIGger
TRIGger subsystem commands are used for the instrument settings of trigger mode, trigger delay and
trigger a measurement.
:SOURce <name>
Command Syntax:
TRIGger:SOURce <name>
Command parameter:
<name> = IMMediate
instrument default setting is internal trigger)
BUS Triggered via RS232 interface)
MANual(EXTernal) (Press
Trig
in the front panel for Trigger)
Query:
:SOURce?
Query control source)
Description:
These are used to select the event control source.
6.3.9 FETCH Subsystem
FETCh? Command
Command syntax:
:FETCh?
Description:
This query command is used to obtain the lastest post-processed reading. This command does not
affect the configuration of the instrument.
This command does not trigger a measurement. The command simply requests the last available
reading. This command continues to return the same old reading, until there is a new reading.
This command will be automatically asserted when :READ? or :MEASure? command is sent.
