HP 83751A User Manual page 220

Error Messages
Error
Error Description [description/explanation/examples]
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 as
-410 Query INTERRUPTED
Indicates that a condition causing an INTERRUPTED Query error
occurred. (See IEEE 488.2, 6.3.2.3); 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. (See IEEE 488.2, 6.3.2.2); for example, the
was addressed to talk and an incomplete program message was
received.
-430
Query DEADLOCKED
Indicates that a condition causing an DEADLOCKED Query error
occurred. (See IEEE 488.2, 6.3.1.7); 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 indeEnite response was executed.
(See IEEE 488.2, 6.3.7.5).
16-22
device