Keysight U2741A, Руководство программиста

Страница: 129 / 169

SYSTem Subsystem 8
Keysight U2741A Programmer’s Reference Guide 129
SYSTem:ERRor?
Syntax
SYSTem:ERRor?
Description
This query returns the next error number and its corresponding message string
from the error queue. The queue is a first-in, first-out (FIFO) buffer that stores
errors as they occur. As it is read, each error is removed from the queue.
Remarks
– If more than 20 errors have occurred, the last error stored in the queue (the
most recent error) is replaced with –350, “Queue overflow” .
– If no errors have occurred when you read the error queue, the U2741A
responds with +0, “No error” .
– The error queue is cleared by the clear status (
*CLS
) command and when
power is cycled.
– Please refer to Chapter 12, “SCPI Error Messages” on page 155 for the error
messages.
Example
SYST:ERR?
//Queries for any system errors (assume
that an invalid command is specified)
Typical Response:
–113,“Undefined header”