Agilent Technologies 34420A, User Manual

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Error Conditions
When the front-panel ‘
ERROR’
annunciator turns on, one or more
command syntax or hardware errors have been detected. A record of up
to 20 errors is stored in the meter’s
error queue . See chapter 5, “Error
Messages,” for a complete listing of the errors.
•
Errors are retrieved in first-in-first-out (FIFO) order. The first error
returned is the first error that was stored. When you have read all
errors from the queue, the ERROR annunciator turns off. The meter
beeps once for each error generated.
•
If more than 20 errors have occurred, the last error stored in the
queue (the most recent error) is replaced with
–350 “ Queue Overflow ”.
No additional errors are stored until you remove errors from the
queue. If no errors have occurred and you read the error queue, the
meter responds with
+0 , “ No error ”.
•
The error queue is cleared when power has been off or after a
*CLS
(clear status) command has been executed.
•
Front-panel operation: read the errors under the
3: ERROR
command in the SYStem menu.
If the
ERROR
annunciator is on, press
Shift >
(Menu Recall) to read
the errors stored in the queue. The errors are listed horizontally on the
“parameter” level. The error queue is cleared when you go to the
“parameter” level and then turn off the menu.
ERR 1: -113
First error in queue Error code
•
Remote interface operation: use the following command to read
the errors.
SYSTem:ERRor?
Errors have the following format (the error string may contain up to
80 characters).
–113, "Undefined header"
Chapter 3 Features and Functions
System-Related Operations
92