Specifications

Status and Events
3-6 AFG3000 Series Arbitrary/Function Generators Programmer Manual
Standard Event Status Register (SESR). The SESR records eight types of events
that can occur within the instrument as shown in Figure 3-3.
Figure 3-3: The Standard Event Status Register (SESR)
Table 3-2: SESR bit functions
Bit Function
7 (MSB) PON Power On. Indicates that the power to the instrument is on.
6 URQ User Request. Indicates that an application event has occurred. The
arbitrary/function generator does not use this bit.
5 CME Command Error. Indicates that an error occurred while the
arbitrary/function generator was parsing a command or query.
4 EXE Execution Error. Indicates that an error occurred while the
arbitrary/function generator was executing a command or query.
Execution errors occur for one of the following reasons:
 A value designated in the argument is outside the allowable
range of the instrument, or is in conflict with the capabilities of the
instrument.
 The command was not executed properly because the conditions
for execution is differed from those required.
3 DDE Device Error. An instrument error has been detected.
2 QYE 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.
1 RQC Request Control. The arbitrary/function generator does not use this
bit.
0 OPC Operation Complete. Indicates that the operation is complete. This bit
is set when all pending operations complete following the *OPC
command.
PON
PON C
ME
ME
EXE
EXE
DDE
DDE
QYE
QYE O
PC
PC
76543210
7 6 5 4 3 2 1 0
URQ
URQ
RQC
RQC