Event status register

The event status register bits are set when certain events occur during PLZ-4W/PLZ-4WL/PLZ-4WH operation. All bits of the event status register are set by the error event queue.

The register is defined by the IEEE488.2 standard. IEEE488.2 common commands *ESE, *ESE?, and *ESR? are used to control the register.

Bit Bit Weight Bit Name Description
0 1 Operation Complete (OPC) Set when an *OPC command is received and all operations in standby are complete. Event-800 Operation Complete message is loaded in the error/event queue.
1 2 Request Control (RQC) Not used
2 4 Query Error (QYE) Set when an attempt is made to read data from the output queue when no output is either present or pending.Indicates that there is no data in the output queue.
3 8 Device Dependent Error (DDE) Set when there is a device-specific error.
4 16 Execution Error (EXE) Set when the PLZ-4W/4WL evaluates the program data following the header is outside the formal input range (does not match the performance of the PLZ-4W/PLZ-4WL/PLZ-4WH).This indicates that a valid SCPI command may not be executed correctly depending on the conditions of the PLZ-4W/PLZ-4WL/PLZ-4WH.
5 32 Command Error (CME) Set when an IEEE 488.2 syntax error is detected, when an unidentifiable header is received, or when a group execution trigger enters the internal IEEE 488.2 SCPI command input buffer.
6 64 User Request (URQ)

Set when the bit is unmasked and the instrument wishes to respond to the 488.2 user request event.
When the instrument detects the activation of the user request local control, an event is generated.
Event-600 User Request message is loaded in the error/event queue.)

7 128 Power ON (PON) Not used
8-15   Reserved Not used




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