3 Status System
K0472 Revision A
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If bit 2 of the Status Byte Register is set the error queue can be read by the query:
:SYST:ERR?
Keep issuing this query until there are no more errors in the error queue. At this point,
bit 2 of the Status Byte Register clears.
If bit 7 of the Status Byte Register is set the Pressure Operations event register can be
read by the query:
:STAT:OPER:PRES?
returning the bits of events that have occurred. Reading this register clears it and the
associated status bit (bit 7).
At any time the instantaneous status of the pressure system can be read by the query:
:STAT:OPER:PRES:COND?
3.5
Instrument Errors
Any instrument error that occurs, either programming errors or execution errors, is stored in
an error queue which is separate from the main output queue. The errors can be read by
issuing the following command query:
:SYST:ERR?
The error queue can hold up to five errors. Each time the error queue is queried the
instrument responds with the next stored error in the queue. The response consists of an
error number followed by a string describing the error. When the error queue is empty the
instrument responds with:
:SYST:ERR 0,
No error
Querying the error queue clears the storage location in the error buffer. If more than five
errors occur, before being queried, the ‘Queue overflow;Error queue overflow’ message is
placed into the error queue. All subsequent errors are lost until the error queue is cleared.
