The Status Byte Register - Keysight N9320B Programmer's Manual

Status Registers
Status Register System

The Status Byte Register

30
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0 1 2 3 4 5 6 7
The RQS bit is read and reset by a serial poll. The same bit position
(MSS) is read, non-destructively by the *STB? command. If you
serial poll bit 6 it is read as RQS, but if you send *STB it reads bit 6
as MSS. For more information refer to IEEE 488.2 standards,
section 11.
Status Byte Register
0 Unused
Unused
1
Error/Event Queue Summary Bit
2
Unused
3
Message Available (MAV)
4
Standard Event Summary Bit
5
Unused
6
Operation Status Summary Bit
7
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Service Request
Enable Register