618 Chapter7
Language Reference
STB Status Byte Query
STB Status Byte Query
Syntax
Figure 7-265 STB Syntax
Description
The STB command returns to the controller the decimal equivalent of
the bits set in the status byte (see the RQS and SRQ commands). STB is
equivalent to a serial poll command. The RQS and associated bits are
cleared in the same way that a serial poll command would clear them.
For more information, refer to Chapter 5.
Bit Decimal Definition
7 — Not used
6 64 Request service
5 32 Error present in error register
4 16 Command complete
3 — Not used
2 4 End of sweep
1 2 Message occurred
0 0 Cleared
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