Remote Control
R&S
®
CMW500
141
User Manual 1173.9463.02 ─ 02
the hardware and system resources are already assigned to another firmware applica-
tion, this firmware application is released in order to start the measurement; see
If a previously initiated measurement (which may be of the same type) is still running, the
new measurement remains in the "PENDing" or "QUEUed"
(see
) and is activated only after the previous measurement has
completed the current measurement cycle. After the new measurement has entered the
"RUN" state, the previous results are discarded.
If the measurement cannot be started due to an unrecoverable resource conflict (e.g. a
missing software option) it remains in the OFF state. The SCPI error "-213, Init
ignored, ...", is generated. See also
Conflicting settings cause restart of the measurement
Many measurement parameters (e.g. RF path settings, filter settings, etc.) have a direct
impact on the measurement results. Changing these parameters while the measurement
is running results in wrong results.
To avoid misleading results, a running measurement is re-started if a parameter with
direct impact on the results is changed. All values acquired so far are discarded; the
statistics counters are re-set to zero.
READ...? command
READ...
? can be used instead of
INITiate...
to start a (single-shot) measurement.
READ...
? also returns the results; see
Retrieving Measurement Results
ABORt:<Application>:MEASurement<i>
Aborts the current measurement immediately and causes the measurement to enter the
OFF state. All measurement values are set to NAV; the hardware resources are released
for other measurements.
STOP:<Application>:MEASurement<i>
Halts the measurement immediately. The measurement enters the RDY state; the R&S
CMW500 retains all valid measurement results. Moreover, the hardware and system
resources continue to be allocated to the measurement.
6.4.2.2
Measurement Substates
Each running measurement can be in one of the following substates:
Substate
For main state
Values
Description
Synchronization
RUN
PENDing
Waiting for resource allocation, adjustment,
hardware switching
RUN
ADJusted
All necessary adjustments finished, measure-
ment running
RDY or OFF
INV
No substate (invalid)
Control of the Instrument
