System:error - HP E4418B Programming Manual

SYSTem Subsystem

SYSTem:ERRor?

SYSTem:ERRor?
This query returns error numbers and messages from the power meter's
error queue. When an error is generated by the power meter, it stores an
error number and corresponding message in the error queue. One error is
removed from the error queue each time the SYSTem:ERRor? command
is executed. The errors are cleared in the order of first-in first-out, that is,
the oldest errors are cleared first. To clear all the errors from the error
queue, execute the *CLS command. When the error queue is empty,
subsequent SYSTem:ERRor? queries return a +0, "No error" message. The
error queue has a maximum capacity of 30 errors.
For further information on individual error messages refer to the User's
Guide.
Syntax
Example
Reset Condition
On reset, the error queue is unaffected.
Error Messages
The error queue has a maximum capacity of 30 errors. If the queue
overflows, the last error is replaced with -350, "Queue overflow". No
additional errors are accepted by the queue until space becomes available.
11-26
SYST :ERR
SYST:ERR?
?
This command queries the oldest
error message stored in the power
meter's error queue.
HP E4418B/E4419B Programming Guide