Read and clear one error from the instrument’s error queue.
A record of up to 30 command syntax or hardware errors can be stored in the error
queue. Errors are retrieved in first-in-first-out (FIFO) order. The first error returned is
the first error that was stored. Errors are cleared as you read them.
If more than 30 errors have occurred, the last error stored in the queue (the most
recent error) is replaced with “Queue overflow”. No additional errors are stored until
you remove errors from the queue.
If no errors have occurred when you read the error queue, the instrument responds
with 0,“No error”.
The error queue is cleared by the *CLS command, when the power is cycled, or
when the firmware is re-started.
The error queue is not cleared by a reset (*RST) command.
The error messages have the following format (the error string may contain up to 255
characters):
error number,”Description”, e.g.
-113,”Undefined header”.
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