Instruction manual

* No method is available to read the error queue from the front panel menu.
* The error queue is cleared when power has been off or after a *CLS (clear sta-
tus) command has been executed.
* To read the error queue from the remote interface, send query as:
SYSTem:ERRor?
* Errors have the following format (the error string may contain up to 40 charac-
ters):
-100,“Command error”
ERROR QUEUE:
As the errors and events are detected, they are placed in the queue. This queue
is FIRST IN - FIRST OUT. If the queue overflows, the last error or event in the queue is
replaced with the error
-350,”Queue overflow”
Any time the queue overflows, the least recent errors remain in the queue, and
the most recent error or event is discarded. Reading an error from the head of the queue
removes that error from the queue, and opens a position at the tail of the queue for a
new error, if one is subsequently detected.
When all errors have been read from the queue, further queries for this queue
will return
0,”No error”
till another error is recorded in the error queue.
The error or event queue is cleared when any of the following occur:
* Upon Power up.
* Upon receipt of a *CLS command.
* Upon reading the last item from the error queue.
COMMAND ERRORS
Message: -100,”Command error”
An invalid command was found in the command string. You may have inserted a
character such as #, $, or % in the command header or within a parameter or you have
sent a command which is not supported by the instrument. This error is given for
syntax errors, missing parameter, wrong header, and numeric data error etc.
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