Model 6220/6221 Reference Manual
Status Structure 11-11
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Standard event status
The used bits of the standard event register (
) are described as
follows:
•
Bit B0, Operation Complete (OPC)
— Set bit indicates that all pending
selected device operations are completed and the Model 622x is ready to
accept new commands. This bit only sets in response to the *OPC? query
command. See
for details on *OPC and *OPC?.
Error/status code: +101
•
Bit B2, Query Error (QYE)
— Set bit indicates that an attempt was made
to read data from an empty output queue.
Error/status codes: -430, -420, -410
•
Bit B3, Device-Specific Error (DSE)
— Set bit indicates that an instrument
operation did not execute properly due to some internal condition.
Error/status codes: -363, -350, -314, +500 t558, +700, +900
•
Bit B4, Execution Error (EXE) —
Set bit indicates that the Model 622x
detected an error while trying to execute a command.
Error/status codes: -260 through -220, +401 t420
•
Bit B5, Command Error (CME) —
Set bit indicates that a command error
has occurred.
Command errors include:
—
IEEE-488.2 syntax error
— The Model 622x received a message that does
not follow the defined syntax of the IEEE-488.2 standard.
—
Semantic error
— The Model 622x received a command that was mis-
spelled or received an optional IEEE-488.2 command that is not imple-
mented.
— The instrument received a Group Execute Trigger (GET) inside a program
message.
Error/status codes: -171 through -100
•
Bit B6, User Request (URQ)
— Set bit indicates that the LOCAL key on
the Model 622x front panel was pressed.
•
Bit B7, Power ON (PON)
— Set bit indicates that Model 622x has been
turned off and turned back on since the last time this register has been
read.
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