CMU Status Reporting System
1100.4903.12 5.23 E-8
Bit-No. Meaning Symbol in
STATus:OPERation:SYMBolic...
12
RF Input Underdriven
This bit is set while the RF input level at connector RF1, RF2 or RF 4
IN falls below the measurement range controlled by the specified RF
Max. Level.
RFIU
For optional function groups refer to the relevant manuals.
Application example (see also description of Winbatch tool in Chapter 7): The following command
sequence shows how an event “Measurement Result is Invalid” is registered in the status reporting
system and illustrates some of the tools that the CMU provides to monitor the instrument status.
...
CMUBASE: *CLS
Clear status reporting system.
CMUBASE: TRACE:REMOTE:MODE:SRQ ON
Include service requests sent by the CMU in the
remote control report.
CMUBASE: TRACE:REMOTE:MODE:DISPLAY ON
Display remote report on screen.
CMUBASE: *SRE 128
Enable service request.
CMUGSMNS: STAT:OPER:SYMB:ENAB MINV
Enable event reporting for bit no. 4, MINV, in a
different function group (GSMxxx-MS Non Signal-
ling).
CMUGSMNS: READ:SCAL:NPOW?
Initiate a single-shot narrow-band power meas-
urement using default settings and return results.
In case of invalid measurement results (e.g. be-
cause no GSM input signal is applied to the input
connectors of the CMU), a read symbol "S" for
service request should appear on the screen.
CMUBASE: STAT:OPER:EVEN:SADD?
Check which function group reported an event.
The query returns the GSM function group.
CMUGSMNS: STAT:OPER:SYMB?
Query events reported by the GSM function
group: Bit MINV must be set
STATus:QUEStionable-Register
This register contains information on questionable instrument states. They can occur, e.g. if the instru-
ment is operated outside its specified range. It can be queried using one of the commands ":STATus
:QUEStionable:CONDition?" or ":STATus:QUEStionable[:EVENt]?".
The CMU does not use this register.
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