Fluke PM-3394B, PM-3380B, PM-3390B CONFigureRISETIME, READRISEOVERshoot?, Multiple measurements

3 - 14	USING THE COMBISCOPE INSTRUMENTS
READ?	Requests to execute the default DC measurement.
	Since this is not possible with the chosen
	configuration, an execution error is generated and
	no result is returned.
CONFigure:RISE:TIME	Configures the CombiScope instrument to perform a
	rise time measurement.
READ:RISE:OVERshoot?	Requests to read the rise time overshoot. Because the
	CombiScope instrument is able to calculate the rise
	overshoot value when it is set up for a rise time
	measurement, the desired result is calculated and
	returned.

A READ? also allows the same parameter sets as the corresponding CONFigure instructions. But, these sets only serve to specify the desired result. They are ignored as far as they affect instrument settings. The parameters can be sent for compatibility with the preceding CONFigure command.

Example:

CONFigure:RISE:TIME Configures the oscilloscope to perform a default rise time measurement (10% to 90% increase of the signal amplitude).

READ:RISE:TIME? 20,80 Requests for the rise time of the 20 to 80% increase of the signal amplitude. As the CombiScope instrument is able to respond to this request, the desired rise time is calculated and returned.

3.3.5Multiple measurements

Sometimes it is necessary to perform multiple measurements of the same signal characteristic. This can be realized by executing multiple MEASure? queries. However, this implies that the relative time-consuming configuration portion of MEASure? is unnecessarily repeated. This can be easily avoided by using the CONFigure and READ? concept as described in the preceding chapter. This concept allows you to do the configuration only once by sending the CONFigure command one time. Sending multiple READ? queries next, causes the instrument to repeatedly execute the desired measurement.

Example:

CONFigure:FREQuency Configures the instrument to perform a frequency measurement.