Agilent Technologies 54621A Programmer's Manual page 70

Table 6-1
Status Reporting
Table 6-1 is a list of the bit definitions for the bit in the status reporting data
structure.
Status Reporting Bit Definition
Bit Description
PON Power On
URQ User Request
CME Command Error
EXE Execution Error
DDE Device Dependent Error
QYE Query Error
RQL Request Control
OPC Operation Complete
OPER Operation Status Register
RQS Request Service
MSS Master Summary Status
ESB Event Status Bit
MAV Message Available
MSG Message
TRG Trigger
WAIT TRIG Wait for Trigger
OVLR Overload Event Register
RUN Instrument running
6-4
Indicates
Power is turned on.
Whether a front-panel key has been pressed.
Whether the parser detected an error.
Whether a parameter was out of range, or
inconsistent with the current settings.
Whether the device was unable to complete an
operation for device dependent reasons.
If the protocol for queries has been violated.
Whether the device is requesting control.
Whether the device has completed all pending
operations.
If any of the enabled conditions in the Operation
Status Register have occurred.
That the device is requesting service.
Whether a device has a reason for requesting
service.
If any of the enabled conditions in the Standard
Event Status Register have occurred.
If there is a response in the output queue.
An advisory has been displayed.
Whether a trigger has been received.
Instrument is armed and ready for trigger.
If an overload is sensed on a 50
That the instrument is not stopped
Ω
input.