Status Reporting

Bit Definitions

MSG - message

Indicates whether there is a message in the message queue (Not implemented in the HP 16500C Logic Analysis System).

PON - power on

Indicates power has been turned on.

URQ - user request

Always returns a 0 from the HP 16500C Logic Analysis System.

CME - command error

Indicates whether the parser detected an error.

EXE - execution error

Indicates whether a parameter was out of range, or inconsistent with current settings.

DDE - device specific error

Indicates whether the device was unable to complete an operation for device dependent reasons.

QYE - query error

Indicates whether the protocol for queries has been violated.

The error numbers and strings for CME, EXE, DDE, and QYE can be read from a device-defined queue (which is not part of IEEE 488.2) with the query :SYSTEM:ERROR? STRING.

RQC - request control

Always returns a 0 from the HP 16500C Logic Analysis System.

OPC - operation complete

Indicates whether the device has completed all pending operations. OPC is controlled by the *OPC common command. Because this command can appear after any other command, it serves as a general-purpose operation complete message generator.

7–5

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HP Sander 16500C MSG message, PON power on, URQ user request, CME command error, EXE execution error, QYE query error