Fluke PM-3390B, PM-3380B, PM-3370B, PM-3394B, PM-3384B user manual Acquisition

4 - 56		COMMAND REFERENCE
Example 1:
Send → MEASure:VOLTage:AC? 0.6,(@2)		Measures AC- RMS on
		channel 2, expected
Read ← <the measured AC-RMS value>		voltage 600 mV.
Send → FETCh:DC? (@2)		Fetches the DC
Read ← <the measured DC component>		component.
Send → FETCh:AMPLitude? (@2)		Fetches the waveform
Read ← <the measured amplitude>		amplitude.
Example 2:
Send → CONFigure:AC		Configures for AC-RMS.
Send → TRIGger:SOURce BUS		Trigger source GPIB.
Send → SENSe:VOLTage:RANGe:OFFSet .25		250 millivolt offset.
Send → INITiate		Initiates trigger system.
Send → *TRG		Triggers (GET) via GPIB.
Send → FETCh:AC?		Fetches AC-RMS value.
Read ← <the measured AC-RMS voltage>
Note:	Because the trigger source is BUS (GPIB), the GET (Group Execute
	Trigger) code must be sent after INITiate and before FETCh? to trigger
	the acquisition.

Errors:

(1)When a FETCh? query is executed and no valid acquisition data is available, nor an acquisition pending, execution error -230, "Data corrupt or stale" is generated. In that case, no result is returned as response to the FETCh? query.

(2)When a FETCh? query for a characteristic from a TRACe memory element is received, which does not contain valid acquisition data, execution error -230, "Data corrupt or stale" is generated.