Table 17-4 *Stb? Mapping - Keysight Technologies P Series Programming Manual

*STB?
The *STB? (STatus Byte) query returns bit 0 to 5 and bit 7 of the power meter's
status byte and returns the Master Summary Status (MSS) as bit 6. The MSS is
the inclusive OR of the bitwise combination (excluding bit 6) of the Status Byte
and the Service Request Enable registers. The format of the return is <NR1> in the
ranges of 0 to 255.
Status Block Diagram at the end of
Table 17-4 *STB? Mapping
Bit Weight
0 1
1 2
2 4
3 8
4 16
5 32
6 64
7 128
Keysight N8262A Programming Guide
Table 17-4
Meaning
Not used
Device Dependent
0 - No device status conditions have occurred
1 - A device status condition has occurred
Error/Event Queue
0 - Queue empty
1 - Queue not empty
Questionable Status Summary
0 - No QUEStionable status conditions have occurred
1 - A QUEStionable status condition has occurred
Message Available
0 - no output messages are ready
1 - an output message is ready
Event Status Bit
0 - no event status conditions have occurred
1 - an event status condition has occurred
Master Summary Status
0 - power meter not requesting service
1 - there is at least one reason for requesting service
Operation Status Summary
0 - No OPERation status conditions have occurred
1 - An OPERation status condition has occurred
IEEE 488.2 Command Reference
shows the contents of this register. Refer to the
Chapter 11 for further information.
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