Rohde & Schwarz CMW500 1201.0002K50 - Control of the Instrument; Generator Control

Remote Control
R&S
®
CMW500
137User Manual 1173.9463.02 ─ 02
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Measurement results are assigned to a particular view. The commands used to define
the measurement statistics and to retrieve results are also view-specific, which makes
it possible to transfer a subset of results actually needed.
Example for context-specific commands
The following measurement control command affects the EPSensor measurement con-
text (external power sensor measurement) in the GPRF:MEASurement firmware appli-
cation:
INITiate:GPRF:MEASurement:EPSensor
The EPSensor measurement context appears as a fourth-level mnemonic. No view type
is specified.
Example for view-specific commands
The following command retrieves the results in the EVMagnitude:DSSS view (EVM for
DSSS signals) which is part of the MEValuation measurement context in the
WLAN:MEASurement<i> firmware application:
FETCh:WLAN:MEASurement<i>:MEValuation:TRACe:EVMagnitude:DSSS:
CURRent?
The EVMagnitude:DSSS view is selected via the sixth- and seventh-level mnemonics.
READ...? and FETCh...? queries
The READ...? query is view-specific and calculates only the results needed for a par-
ticular view. This can result in a performance improvement compared to the context-
specific command sequence INITiate...; FETCh...?.
6.4 Control of the Instrument
The following sections describe the control of measurement, generator, and signaling
applications.
6.4.1 Generator Control
The commands used to control the different RF signal generators of the R&S CMW500
are analogous to the commands explained in section Measurement Control. A generator
is in one of the following generator states:
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OFF: Generator turned off, resources either released or (partially) reserved from the
last time the generator was turned on.
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PENDing: Generator turned on, but still waiting for resource allocation, adjustment,
hardware switching. No output signal is available at the selected output connector.
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ON: Generator turned on, with all necessary adjustments finished. An output signal
is available at the selected output connector.
Control of the Instrument