17-102 SCPI Command Reference
TRIGger subsystem
The TRIGger subsystem is made up of a series of commands and subsystems to configure
the Trigger Model. These commands and subsystems are summarized in Table 17-10.
NOTE See Section 10 for more details on triggering and the trigger model.
Clear input triggers
:CLEar
:TRIGger:CLEar Clear pending input triggers
Description When this action command is sent, any pending (latched) input triggers are
cleared immediately. When the SourceMeter is being triggered by another
instrument, it may inadvertently receive and latch input triggers that do not
get executed. These pending triggers could adversely affect subsequent
operation.
When using external triggering, it is recommended that TRIGger:CLEar be
sent after sending the ABORt command and at the beginning of a program
before sending an initiate command. (See :INITiate command.)
Initiate source/measure cycle
:INITiate
:INITiate[:IMMediate] Take SourceMeter out of idle state
Description This command is used to initiate source-measure operation by taking the
SourceMeter out of idle. The :READ? and :MEASure? commands also per-
form an initiation.
Note that if auto output-off is disabled (SOURce1:CLEar:AUTO OFF), the
source output must first be turned on before an initiation can be performed.
The :MEASure? command automatically turns the output source on before
performing the initiation.
WARNING With auto output-off disabled, the source output will remain on after all
programmed source-measure operations are completed. Beware of hazard-
ous voltage (30VDC, 42.4 peak-to-peak or more) that may be present on
the output terminals.
With auto output-off enabled, an initiation will start operation immediately.
The source output will automatically turn on at the beginning of each SDM
(source-delay-measure) cycle and turn off after each measurement is
completed.
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