LO Synthesizer Distribution Unit
IEEE 488.2 Command Reference
6.12 *STB?
The
*STB?
(STatus Byte) query returns bit 0 to 5 and bit 7 of the QM1014 LO Synthesizer Distribution
Unit status byte and returns the Master Summary Status (MSS) as bit 6. The MSS is 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 an integer between 0 and 255. Table 4.12 shows the contents of this register.
Table 4.12:
*STB? mapping
Bit
Base 2
Meaning
0
1
Not used
1
2
Device Dependent
0 - No device status condition has occurred
1- A device status condition has occurred
2
4
Error/Event Queue
0 = Queue empty
1 = Queue not empty
3
8
Questionable Status Summary
0 - No QUEStionable status conditions have occurred
1 - A QUEStionable status condition has occurred
4
16
Message Available
0 - no output messages are ready
1 - an output message is ready
5
32
Event Status Bit
0 - no event status has occurred
1 - an event status condition has occurred
6
64
Master Summary Status
0 - LO Synthesizer Distribution Unit not requesting service
1 - there is at least one reason for requesting service
7
128
Operation Status Summary
0 = No OPERation status conditions have occurred
1 = An OPERation status condition has occurred
Syntax
*
STB
?
Quonset Microwave
Revision 1.2.1
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