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4
Chapter 4 Features and Functions
Error Conditions
Error Conditions
When an error occurs, the 3499A/B/C will beep and the ERROR
annunciator on the front-panel lights up. This indicates one or more
command syntax or hardware errors have been detected.
•
The error queue will be cleared automatically once you read the
queue, change the system mode, send the RESET command, or cycle
power on the instrument. However, a module reset will not clear the
error queue.
•
Front-Panel Operation: Press View, select "ERROR", and press
Enter. The sum of the values of the possible error conditions is
displayed (refer to "Error Messages" on page 135).
•
Remote Interface Operation: In 3488 mode, the sum of the values of
the possible error conditions is recorded in the error queue. For
example, the returned value of "0003" means that both "Syntax
Error" and "Execution Error" occurred (refer to "Error Messages" on
page 135).
ERROR
Self-Test
The 3499A/B/C can perform a self-test to verify that it is in proper
operation.
•
If the self-test is successful, "PASSED" will be displayed on the front-
panel. Otherwise, the reason of the failure will be displayed. For
details of all self-test failures, refer to "Self Test Errors" on page 136.
•
Front-Panel Operation: Press Menu, use the knob to select
"SELFTEST", and press Enter to perform a self-test.
•
Remote Interface Operation:
TEST
96
! Query the error register.
! Returns zero if the test is
successful, or non-zero if it
fails.
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