128 Keysight InfiniiVision DSOX1204A/G Oscilloscopes Programmer's Guide
5 Common (*) Commands
See Also • "Introduction to Common (*) Commands" on page 109
• "*SRE (Service Request Enable)" on page 125
Table 43 Status Byte Register (STB)
Bit Name Description When Set (1 = High = True), Indicates:
7 OPER Operation Status Register An enabled condition in the Operation Status
Register (OPER) has occurred.
6 RQS Request Service When polled, that the device is requesting service.
MSS Master Summary Status When read (by *STB?), whether the device has a
reason for requesting service.
5 ESB Event Status Bit An enabled condition in the Standard Event Status
Register (ESR) has occurred.
4 MAV Message Available There are messages in the Output Queue.
3 --- --- (Not used, always 0.)
2 MSG Message An advisory has been displayed on the
oscilloscope.
1 USR User Event An enabled user event condition has occurred.
0 TRG Trigger A trigger has occurred.
To read the instrument's status byte with RQS reported on bit 6, use the interface Serial Poll.
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