Rohde & Schwarz CMU 200 - Measurement Status

Measurement Control CMU
1100.4903.12 5.32 E-8
Two different specifiers are provided:
<spec> = [:LIST] Return the complete list of all ready measurements and reset all entries in the
measurement queue to NONE.
<spec> = :ITEM Return the next ready measurement in the list and reset the corresponding
entry in the measurement queue to NONE.
Symbolic measurement ready evaluation is in order, e.g. to avoid inconsistencies when a FETCh...?
command is used to retrieve measurement results (see section Retrieving Measurement Results on
page 5.35).
Measurement Status
The status of the current measurement can be queried by means of the following command:
FETCh status
FETCh:<meas_obj>:STATus?
Return the current status of the measurement. The FETCh... command can be
used as well to poll the progress of a measurement. The response to the
FETCh... query has the format <Status>, <Counting_No>, <Statis-
tic_No>.
<Status>
The first parameter in the response reports on the current status of the meas-
urement. The measurement status returned is closely linked to the four meas-
urement states described in section Measurement Control Commands and
States on page 5.28 ff.:
OFF measurement in the OFF state after *RST or ABORt
RUN measurement in the RUN state after INITiate, CONTinue, or
READ
STOP measurement in the STOP state after STOP (stopped explicitly)
STEP measurement in the STEP state due to <Stepmode> = STEP, valid
measurement results
RDY measurement in the STOP state because stopped according to the
repetition mode and stop condition set.
ERR measurement in the OFF state because it could not be started with
INITiate or READ for lack of resources, e.g. because the RF con-
nectors were already in use by another measurement.
<Counting_No>
The second parameter in the response returns the current value of the statistics
counter (the number of the current statistics cycle) if the measurement is per-
formed in the Counting mode:
0 ... 10000 number of the current statistics cycle
NONE no counter for statistics cycles used, i.e. a repetition mode other than
Counting is set.
<Statistic_No>
The third parameter in the response returns the number of the current evalua-
tion period (e.g. a burst length in the case of GSM Power vs Time or Modulation
measurements) within a statistics cycle. For RF Non Signalling Measurements
this counter is not used (response NONE).