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*STB?
Status Byte Query
Reads out the value of the Status Byte. Bit 6 reports the Master Summary Status bit (MSS), not the Request Service (RQS). The MSS is set if the instrument has one or more reasons for requesting service.
Returned format
<Integer> = the sum (between 0 and 255) of all bits that are true.
Status byte Register (1 = true) | |||
---|---|---|---|
Bit | Weight | Name | Condition |
7 | 128 | OPR | Enabled operation status has occurred. |
6 | 64 | MSS | Reason for requesting service. |
5 | 32 | ESB | Enabled status event condition has occurred |
4 | 16 | MAV | An output message is ready |
3 | 8 | QUE | The quality of the output signal is questionable |
2 | 4 | EAV | Error available |
1 | 2 | Not used | |
0 | 1 | Not used |