Anritsu MP1777A operation manual Table A-4Error Messages of Query Errors Code

Appendix A SCPl Error Messages

A.4 Query Errors

The error codes, [-499and -4001,indicate that the output control queue of the device has encountered errors related to the message exchange control protocol. When these errors take place, bit 2 of the event status register of the device is set.

Errors take place when the following events take place.

Reading from the output queue was attempted in the absence of output.

The data of the output queue has been lost.

Table A-4Error Messages of Query Errors

Code Message Error Detection Condition

-4 10 Query INTERRUPTED Before the device finishes sending a response message, an interrupt by a new command has taken place.

Example: *TRG was sent before sending of a response has fully been completed.

-320 Query UNTERMINATED

-430 Query DEADLOCKED

A query to correspond to the response message to be read has not been sent. Or the query has completely been terminated.

Data greater in size than the storage area has been attempted to be stored into the buffer.

Example: The device is unable to continue measurement because the input and output buffers are both full.