Error Conditions - Agilent Technologies 34420A User Manual

Chapter 3 Features and Functions
System-Related Operations

Error Conditions

When the front-panel '
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.
ERROR
If the annunciator is on, press
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:
First error in queue
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"
92
ERROR'
annunciator turns on, one or more
Shift >
-113
Error code
(Menu Recall) to read