Table 3-2: Sesr Bit Functions; Figure 3-3: The Standard Event Status Register (Sesr) - Tektronix AWG710 Programmer's Manual

Status and Event Reporting
Standard Event Status
Register (SESR)
3-6
The SESR is made up of 8 bits. Each bit records the occurrence of a different
type of event, shown in Figure 3–3 and Table 3–2. The contents of this register
are returned when the *ESR? query is used.
7 6 5 4 3
PON CME EXE DDE QYE

Figure 3-3: The Standard Event Status Register (SESR)

Table 3-2: SESR bit functions

Bit Function
7 Power On (PON). Indicates that the power to the instrument is on.
6 Not used.
5 Command Error (CME). Indicates that a command error has occurred while
parsing by the command parser was in progress.
4 Execution Error (EXE). Indicates that an error occurred during the execution of
a command. Execution errors occur for one of the following reasons:
H A value designated in the argument is outside the allowable range of the
instrument, or is in conflict with the capabilities of the instrument
H The command could not be executed properly because the conditions for
execution differed from those essentially required
3 Device Specific Error (DDE). An instrument error has been detected.
2 Query Error (QYE). Indicates that a query error has been detected by the
output queue controller. Query errors occur for one of the following reasons:
H An attempt was made to retrieve messages from the output queue,
despite the fact that the output queue is empty or in pending status.
H The output queue messages have been cleared despite the fact that they
have not been retrieved.
1 Not used.
0 Operation Complete (OPC). This bit is set with the results of the execution of
the *OPC command. It indicates that all pending operations have been
completed.
AWG710 Arbitrary Waveform Generator Programmer Manual
2 1 0
OPC