Standard Event Status Group
These registers are programmed by Common commands. The group consists of an Event and Enable
register. The Standard Event event register latches events relating to communication status. It is a
read-only register that is cleared when read. The Standard Event enable register functions similarly
to the enable registers of the Operation and Questionable status groups. See Status Registers for a
description of each register.
The event status register bits are set when certain events occur during instrument operation.
The register is controlled by the IEEE 488 commands *ESE, *ESE?, and *ESR?.
Bit Value Bit Name Description
0 1 Operation Com-
plete (OPC)
All commands before and including *OPC have completed.
1 2 (not used) 0 is returned
2 4 Query Error (QYE) The instrument tried to read an empty output buffer, a command was received before a previous
query was read, or the input and output buffers are full.
3 8 Device Dependent
Error (DDE)
A device-specific error occurred. Error Messages
4 16 Execution Error
(EXE)
An execution error occurred. Error Messages. A valid SCPI command may not be executed cor-
rectly depending on the instrument's conditions.
5 32 Command Error
(CME)
A command syntax error occurred. Error Messages
6 64 Reserved 0 is returned
7 128 Power ON (PON) Power has been cycled since the last time the event register was read or cleared.
3îîSCPI Programming Reference
104 Keysight AC6800B Series Operating and Service Guide
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