Agilent Technologies E1441A user service SYSTem, ERRor?, VERSion?, Subsystem Syntax

SYSTem

	The SYSTem command subsystem returns error numbers and their associated
	messages from the error queue. You can also query the SCPI version to which this
	instrument complies.
Subsystem Syntax	SYSTem
	:ERRor?
	:VERSion?

:ERRor?

SYSTem:ERRor? returns the error numbers and corresponding error messages in the error queue. See Appendix B in this manual for a listing of the error numbers, messages and descriptions.

Comments • When an error is generated by the function generator, 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 a first-in, first-out (FIFO) order. This means that 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 the *CLS command.

•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 (until you remove some of the errors by reading them).

Example Reading the Error Queue

SYST:ERR?	Query the error queue.
enter statement	Enter readings into computer.

:VERSion?

SYSTem:VERSion? returns the SCPI version number to which this instrument complies.

Comments • The information returned is in the format "YYYY.R" where "YYYY" is the

year and "R" is the revision number within that year.

120 Agilent E1441A SCPI Command Reference Chapter 3