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6-68 Chapter 6: Programming
Model 801GC, 801GF & 801GX¥Rev. A
Event Status Bit Definitions
OPC
Operation complete. Indicates that all
operations have been completed.
RQC
Request control. Indicates that a device is
requesting control. The 801GX will never
request control, so this bit will always be 0.
QYE
Query error. Indicates that a query request
was made while the 801GX was in deadlock.
DDE
Device dependent error. Indicates that the
801GX encountered an error executing a
command.
EXE
Execution error. Indicates that there was an
error parsing a parameter.
CME
Command error. Indicates that there was an
unrecognizable command.
URQ
User request. Indicates that a front panel
button has been pressed or that the front
panel knob has been turned.
PON
Power on. Indicates that power has been
turned off-and-on. This bit will always be 0
in the 801GX.
Status Byte Bit Definitions
MAV
Message available. Indicates that at least one
complete response is present in the output
buffer.
ESB
Event status bit. Indicates that one of the
enabled conditions in the Standard Event
Status register is set.
MSS
Master summary status. Indicates that the
801GX has a reason for requesting service.
RQS
Request service. This bit is read only by
executing a serial poll of the 801GX.