Fluke PM-3380B Configures AC-RMS CH1, Input channel 1 becomes, Trigger source, Single initiation

COMMAND REFERENCE 4 - 125

Description:

Controls the trigger source. The command selects the source, and the query returns the source that triggers the acquisition. If a trigger source other than IMMediate, INTernal<n>, LINE, or BUS is active, execution error -221 is generated at receipt of the query. The dual slope selection (EITHer) is only possible, if the trigger source is INTernal<n> and if in the "real time" mode (SENSe:SWEep:REALtime ON). If the trigger source becomes BUS, LINE, or IMMediate, the trigger slope selection is changed to POSitive.

After a *RST command, the trigger source is IMMediate for the PM3384B-94B and EXTernal for the PM33x0B CombiScope instruments (if a signal is available at the external trigger input channel).

Example:
Send → CONFigure:AC (@1)	Configures AC-RMS CH1.
Send → TRIGger:SOURce INTernal1	Input channel 1 becomes the
Send → TRIGger:LEVel 0.2	trigger source.
	Trigger level becomes 0.2V.
Send → TRIGger:SOURce BUS	The GPIB becomes the trigger
Send → INITiate	source.
	Single initiation.
Send → *TRG	Triggering via the GPIB.
Send → FETCh:AC?	Fetches AC-RMS values.
Read ← <AC-RMS voltage>	Reads AC-RMS value.

Front panel compliance:

The TRIGger:SOURce command is the remote equivalent of the front panel TRIGGER MAIN TB - chn/line option of the TRIGGER menu.

Programming tip:

For single-shot measurements, the trigger source must be one of the input channels <n> (INTernal<n>), instead of IMMediate (software automatic trigger).