MEASure[<chan>]

Subsystem Syntax

The MEASure? query subsystem provides a complete measurement sequence, including configuration and reading of the data. MEASure? is used when the generic measurement is acceptable and default triggering and timebase values may be used. The MEASure? query is the same as doing the command sequence of ABORt;CONFigure;INITiate;FETCh?.

MEASure[<chan>] :ARRay

[:VOLTage]

[:DC]? (<size>)[,<expected value>[,<resolution>]][,(@<input port>)]

:ARRay[:VOLTage][:DC]?

MEASure[<chan>]:ARRay[:VOLTage][:DC] (<size>)[,<expected

value>[,<resolution>]][,(@<input port>)] will configure for taking <size> number of readings on the specified channel and <input port>. The <expected value> and <resolution> parameters are used to set SENSe:VOLTage:RANGe to an appropriate setting for making the measurement on the specified input port and channel. If no expected value is given, the 1V range (1.0235 V peak) is used. If a resolution is specified, it is checked for correctness against what is possible with the expected value range, and if too fine for the given expected value, error -231,"Data questionable;CONF or MEAS unable to attain resolution specified" will occur.

Each channel consists of two ports; one port is single ended, and the other is differential. The two ports on channel 1 have odd numbers: port 1 is the single ended input and port 3 is the differential input. On channel 2, the single ended input is port 2 and the differential input is port 4.

The expected value parameter specified should be the maximum expected measurement value. The voltage range is set according to the expected value supplied. If the expected value is greater than 98% of a given range, the next higher range is automatically chosen. The table under the "Settings" heading gives the crossover points for range changes.

236 Command Reference

MEASure[<chan>] Subsystem

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HP E1429A manual ARRayVOLTageDC?, MEASurechanARRayVOLTageDC size,expected