6-12 Agilent 4155C/4156C SCPI Command Reference, Edition 1
Error Messages
Query Error
Query Error
If the output queue control of the 4155C/4156C detects one of following problems, a
-4XX error occurs:.
• An attempt was made to read data from the output queue when no output data is
present or pending.
• Data in the output queue has been lost.
If this type of error occurs, the error number and message are placed in the error
queue, and bit2 of the Standard Event Status Register is set.
Error -400 Query error
Generic query error for the 4155C/4156C that cannot be determined more
specifically.
Error -410 Query INTERRUPTED
A condition causing an INTERRUPTED query error occurred; for example, a query
followed by DAB or GET before a response was completely sent.
Error -420 Query UNTERMINATED
A condition causing an UNTERMINATED query error occurred; for example, the
4155C/4156C was addressed to talk and an incomplete program message was
received.
Error -430 Query DEADLOCKED
A condition causing a DEADLOCKED query error occurred; for example, both
input buffer and output buffer are full and the 4155C/4156C cannot continue.
Error -440 Query UNTERMINATED after indefinite response
A query was received in the same program message after a query requesting an
indefinite length response was executed.