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F
Query Errors
These are error messages in the range -400 to -499. They indicate that an error
has been detected by the output queue control.
A device-specic error is signaled by the query error bit (bit 2) in the event
status register .
-300 Query error . This indicates that a query error has occurred. No more
specic information is available .
-410 Query INTERRUPTED . A condition occurred that interrupted the
transmission of the response to a query (for example , a query followed by a
D AB or a GET before the response was completely sent).
-420 Query UNTERMINA TED . A condition occurred that interrupted the
reception of a query (for example , the instrument was addressed to talk and an
incomplete program message was received).
-430 Query DEADLOCKED . A condition causing a deadlocked query has
occurred (for example , both the input and the output buer are full and the
device cannot continue).
-440 Query UNTERMINA TED after indenite response . Two queries were
received in the same message . The error occurs on the second query if the rst
requests an indenite response , and was already executed.
F-8 Error Messages