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Digitizers Command Reference 97Chapter 3
SYSTem
The SYSTem command subsystem returns error numbers and their
associated messages from the error queue. You can also query the SCPI
version for this instrument.
Subsystem Syntax SYSTem
:ERRor?
:VERSion?
SYSTem:ERRor?
SYSTem:ERRor? returns the error numbers and corresponding error
messages in the error queue. See Appendix C for a listing of the error
numbers, messages and descriptions.
Comments Error Queue Operation: When an error is generated by the digitizer, it stores
an error number and corresponding message in the error queue. One error
is removed from the error queue each time SYSTem:ERRor? is executed.
FIFO Error Clearing: The errors are cleared in a first-in, first-out order. If
several errors are waiting in the queue, each SYSTem:ERRor? query
returns the oldest (not the most recent) error. That error is then removed
from the queue. When the error queue is empty, subsequent SYSTem:
ERRor? queries return +0,"No error". To clear all errors from the queue,
execute *CLS.
Error Queue Capacity: The error queue has a maximum capacity of 20 errors.
If the queue overflows, the last error is replaced with -350,"Too many
errors". No additional errors are accepted by the queue until space
becomes available.
SYSTem:VERSion?
SYSTem:VERSion? returns the SCPI version number to which this
instrument complies. The information returned is in the format "YYYY.R"
where "YYYY" is the year and "R" is the revision number within that year.