Agilent Technologies 8712ET Programmer's Manual page 307

Table 13-4
Error
Number
−400
Query error — This is the generic query error for devices that cannot detect
more specific errors. This code indicates only that a Query Error has
occurred.
−410
Query INTERRUPTED — Indicates that a condition causing an
INTERRUPTED Query error occurred; for example, a query followed by DAB
or GET before a response was completely sent.
−420
Query UNTERMINATED — Indicates that a condition causing an
UNTERMINATED Query error occurred; for example, the device was
addressed to talk and an incomplete program message was received.
−430
Query DEADLOCKED — Indicates that a condition causing a DEADLOCKED
Query error occurred; for example, both input buffer and output buffer are
full and the device cannot continue.
−440
Query UNTERMINATED after indefinite response — Indicates that a query
was received in the same program message after an query requesting an
indefinite response was executed.
SCPI Error Messages
Query Errors
SCPI Query Errors
13-18
Error Description
Programmer's Guide