Agilent Technologies 4155C Command Reference Manual page 52

Table 3-1
Status Reporting Structure
Status Byte Register
Status Byte Register
Bit Definition
0 Emergency Status Bit
Summary Message
1 Measurement/Stress
Status Bit Summary
Message
2 NOT USED
3 Questionable Status Bit
Summary Message
4 Message Available
(MAV) Queue Summary
Message
5 Standard Event Status
Bit (ESB) Summary
Message
6 Request Service (RQS)
Message
Master Summary Status
(MSS) Summary
Message
7 Operation Status Bit
Summary Message
3-4 Agilent 4155C/4156C SCPI Command Reference, Edition 1
Explanation
Indicates whether one or more of the enabled
Emergency Status Register bits is set.
Indicates whether one or more of the enabled
Measurement/Stress Status Register bits is
set.
Always zero.
Indicates whether one or more of the enabled
Questionable Status Register bits is set.
Indicates whether the Output Queue is
empty.
Indicates whether one or more of the enabled
Standard Events Status Register bits is set.
Indicates whether a SRQ (Service Request)
has occurred.
Indicates that the instrument has at least one
reason for requesting service.
Indicates whether one or more of the enabled
Operation Status Register bits is set.