Download Rev AB - AMETEK Programmable Power

AC Source SCPI Programming Manual
California Instruments
trigger the acquisition of new data when they are executed. First, you must initiate the
measurement trigger system and generate a measurement trigger as explained in the
following section "Triggering Measurements". When the measurement data has been
acquired by the voltage and current data buffers for each output phase, use
INSTrument:NSELect to select each phase, and FETCh to return the specified measurement
data. The following commands return rms voltage:
INSTrument:NSELect 1
FETCh:VOLTage:AC?;*WAI
INSTrument:NSELect 2
FETCh:VOLTage:AC?;*WAI
INSTrument:NSELect 3
FETCh:VOLTage:AC?;*WAI
6.6.6 Returning Voltage and Current Data From the Data Buffer
The MEASure and FETCh queries can also return all 4096 data values of the instantaneous
voltage and current buffers. These are:
MEASure:ARRay:CURRent[:DC]?;*WAI
MEASure:ARRay:VOLTage[:DC]?;*WAI
6.6.7 Triggering Measurements
You can use the data acquisition trigger system to synchronize the timing of the voltage and
current data acquisition with an external trigger source. Then use the FETCh commands to
return different calculations from the data acquired by the measurement trigger.
The following measurement trigger sources can be selected:
IMMediate
SYNChronize
BUS
TTLTrg
Aquire the measurements immediate
Internal to phase A angle
IEEE-488 device, *TRG, or <GET> (Group Execute Trigger)
The signal driving the Trigger Out
iM Series / i Series / iX Series
149