Agilent Technologies PSA Series Manual page 156

Front-Panel Key and SCPI Command Reference
Measure
READ Commands:
:READ:<measurement>[n]?
• Does not preset the measurement to the factory default settings. For example, if you have previously
initiated the ACP measurement and you send READ:ACP? it will initiate a new measurement using the
same instrument settings.
• Initiates the measurement and puts valid data into the output buffer. If a measurement other than the current
one is specified, the instrument will switch to that measurement before it initiates the measurement and
returns results.
For example, suppose you have previously initiated the ACP measurement, but now you are running the
channel power measurement. Then you send READ:ACP? It will change from channel power back to ACP
and, using the previous ACP settings, will initiate the measurement and return results.
• Blocks other SCPI communication, waiting until the measurement is complete before returning the results
If the optional [n] value is not included, or is set to 1, the scalar measurement results will be returned. If the
[n] value is set to a value other than 1, the selected trace data results will be returned. See each command for
details of what types of scalar results or trace data results are available. The binary data formats should be
used when handling large blocks of data since they are smaller and faster then the ASCII format.
(FORMat:DATA)
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Chapter 4