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Error Messages
SCPI Error Messages
Query
Error
An <error/event number> in the range [ -499,
-4001
indicates that
the output queue control of the instrument has detected a problem with
the message exchange protocol described in IEEE 488.2, chapter 6. The
occurrence of any error in this class shah cause the query error bit (bit 2) in
the event status register (IEEE 488.2, section 11.5.1) to be set. These errors
correspond to message exchange protocol errors described in IEEE 488.2,
section 6.5. One of the following is true:
l An attempt is being made to read data from the output queue when no
output is either present or pending;
l Data in the output queue has been lost.
Events that generate query errors shah not generate command errors,
execution errors, or device-speciEc errors; see the other error dehnitions in
this section.
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General