The Status Byte Register - HP 8153A Operating And Programming Manual

^Stb?
STatus Byte query.
Syntax
Response
Definition
Related Commands
Example
♦STB?
<value>
0 < value < 265
Tkble 6-6. The Status Byte Register
BITS MNEMONICS Decimal
Value
7 Operational Status 128
6 Master Summary Status (MSS) 64
5 Event Status Bit (ESB) 32
4 Message Available (MAV) 16
3 Questionable Status 8
2 Not used 0
1 Not used 0
0 Source Status 0
The *STB? query returns the contents of the Status Byte
register. The register is programmed via the Service
Request Enable Mask. For setting this mask, see "*SRE".
The value is returned as an integer (NRl).
The
STATUS
commands find the exact cause of an error.
These are described in Chapter 7.
The Master Summary Status (MSS) bit is true when any
enabled bit of the STB register is set (excluding Bit 6).
The Status Byte register including, the master summary
bit, MSS, is not directly altered because of an +STB?
query.
*SRE, *SRE?
OUTPUT 722; "*STB?"
ENTER 722; A$
Remote Operation • Common Commands 6-13