HP EPM E4418A, User Manual

Page: 129 / 158

HP4402.book : chapter4.fm 3 Tue Apr 22 15:20:23 1997
Error Messages
Introduction
HP EPM-441A User’s Guide 4-3
Errors are retrieved in a first in first out (FIFO) order. If more than 30
errors occur, the error queue overflows and the last error in the queue is
replaced with error
-350, “Queue Overflow”
. Any time the queue
overflows the most recent error is discarded.
Once the errors are read they are removed from the error queue. This
opens a position at the end of the queue for a new error message, if one is
subsequently detected. When all errors have been read from the queue,
further error queries return
+0, “No errors”
.
To delete all the errors in the queue from the front panel press:
• , , then .
To delete all the errors in the queue remotely use:
• the
*CLS
(clear status) command.
The error queue is also cleared when the instrument power has been
switched off.
System
Inputs
More Error List Clear Errors