Tektronix AFG2021 Programmer's Manual page 125

AFG2021 Arbitrary Function Generator Programmer Manual
Table 3-2: SESR bit functions (cont.)
Bit Function
3 DDE
2 QYE
1 RQC
0 OPC
Operation Event Register (OEVR). This register has the same content as the
Operation Condition Register.
Status and Events
Device Error. An
instrument error
has been detected.
Query Error.
Indicates that a
query error has
been detected by
the output queue
controller. Query
errors occur for
one of the following
reasons:
An attempt was
made to retrieve
messages from
the output
queue when the
output queue
is empty or in
pending status.
The output
queue message
was cleared
while it was
being retrieved
from the output
queue.
Request Control.
The instrument
does not use this
bit.
Operation
Complete.
Indicates that
the operation is
complete. This
bit is set when all
pending operations
complete following
the *OPC
command.
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