R&S EB200 - Page 133

EB200 Manual SENSe subsystem DATA?
4052.2000.02 4.59 E-7
. :DATA? [<data_handle>]
Query of the current measured values of active sensor functions.
When only the command SENSe:DATA? is used to query measured values, the measured values
reported back may be as old as 200 ms. For display on the unit measured values are captured every
200 ms and put into a buffer.
In the event that current data are needed the command combination INIT;:SENSe:DATA? is to be
used. As response to this query the current measured value is reported back.
When a complete measurement is to be started, possibly by using a predefined measuring time, for
instance the command combination FREQ 98.5 MHZ;:INIT;:SENSe:DATA? should be used. As a
result, the measurement history is reset, ie the detectors are discharged, a measurement is started and
the result is reported back when the measuring time has elapsed.
In order not to block remote-control communication during longer measuring times, the measured value
should only be queried when the measurement has been completed and not right after starting.
The measured value thus obtained is stored in MTRACe, provided that the path to the result buffer
MTRACE was enabled with command TRACE:FEED:CONTrol MTRACE, ALWays.
The unit may actively report the end of measurement (MEASUring bit in operation status register
becomes inactive) via SRQ if the status register has been configured accordingly (see also "Status
reporting system" on page 127).
Note:
For this command the keyword SENSe must not be omitted as DATA? can be mixed up with the
subsystem TRACe/DATA.
Parameters:
none output of the measured values of all active sensor functions; if no
function is switched on, an error -221, "Settings
Conflict" will be generated
"[SENSe:]FREQuency:OFFSet" output of offset value or error -221, "Settings Conflict"
"[SENSe:]VOLTage:AC" output of level value or error -221, "Settings Conflict"
"[SENSe:]FSTRength" output of measured field strength value or error -221,
"Settings Conflict"
Note:
The sensor function FSTRength will only provide results if the SW option EB200Fs is fitted. Also see
Annex H.