3
Programming
220
Keysight 53147A/148A/149A Operating and Programming Guide
:MEASure Subsystem
The
:MEASure
subsystem commands allow you to configure the instrument,
initiate measurements, and place the results in the Output Queue using a
minimum number of commands. These commands are described in detail in this
section.
Measurement Instructions (:CONFigure, :FETCh, :MEASure, :READ)
The purpose of these commands is to acquire data using a set of high-level
instructions. These commands are structured to allow you to trade off
interchangeability between instruments. The
:MEASure
query provides the ability
to configure the instrument, take a measurement, and store the results in the
Output Queue in a single operation.
When more precise control of the measurement is required, the
:CONFigure
and
:READ?
commands can be used. The
:CONFigure
command is used to configure
the instrument for the measurement to be taken, and the
:READ?
command
acquires the data, performs any required post processing, and then places the
results in the Output Queue. This allows you to configure the instrument
generically (using
:CONFigure
) and then to customize the measurement with
other commands (for example, commands from the
[:SENSe]
subsystem). The
:READ?
command completes the measurement process.
The
:READ?
command is composed of the
:INITiate[:IMMediate]
and
:FETCh?
commands.
:INITiate[:IMMediate]
performs the data acquisition.
:FETCh?
performs the post-processing function (if any) and places the result in the Output
Queue. This allows more than one
FETCh?
on a single set of acquired data.
The functions of the measurement instruction commands are summarized in
.
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