Stb (Status Byte) - HP 16500C Programmer's Manual

Common Commands

*STB (Status Byte)

Table 9-5 HP 16500C Service Request Enable Register
Bit Position
15-8
7
6
5
4
3
2
1
0
*STB (Status Byte)
Query *STB?
The *STB query returns the current value of the instrument's status byte.
The MSS (Master Summary Status) bit, not the RQS (Request Service) bit, is
reported on bit 6. The MSS indicates whether or not the device has at least
one reason for requesting service. Refer to table 9-6 for the meaning of the
bits in the status byte.
Returned Format
<value><NL>
An integer from 0 through 255
<value>
Example
OUTPUT XXX;"*STB?"
See Also Refer to chapter 7, "Status Reporting" for a complete discussion of status.
9–16
Bit Weight Enables
not used
128 not used
64 MSS - Master Summary Status (always 0)
32 ESB - Event Status
16 MAV - Message Available
8 LCL- Local
4 not used
2 not used
1 MSB - Module Summary