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5.
Error Messages
When a syntax or hardware error has been detected, the front-panel Err annunciator turns on
and the power supply beeps once each time an error is generated. A record of up to 32 errors
is stored in the power supply's error queue.
Errors are retrieved in first-in-first-out (FIFO) order. The first error that was stored first is
returned first. The Err annunciator turns off when all errors stored in the error queue have
been read.
If more than 32 errors have been detected, the most recent error (the last error stored in the
queue) is replaced with -350, "Too many errors." No additional errors are stored until you
remove errors from the queue. Reading the error message stored in the queue will remove it
at the same time. If no errors are stored when you read the error queue, the power supply
responds with +0, "No Errors" over the remote interface or NO ERROR from the front panel
operation.
When the power supply has been powered off or after a *CLS (clear status) command has
been executed, the error queue is cleared. The *RST (reset) command does not clear the
error queue.
On the other hand, if all of the error messages are from execution, Self-Test, and calibration,
then the following sections will describe which error code represents the status.
Front-panel operation:
Press the ERROR key repeatedly to read the errors stored in the queue if the Err annunciator is on.
The error is removed from the queue after being read by user.
Remote interface operation:
Use SYSTem:ERRor? to read the latest error message from the error queue. The returned
error messages have the 73 following format.
-113,"Undefined header"
5.1
Execution Errors
-101 Invalid Character
There is one or more invalid character in the command string. Characters such as #, $, or %
are not available in a command and may have been inserted in the command keyword or
within a parameter.
Example: #VOLT 10
-102 Syntax Error
There is one or more syntax error in the command string. You may have inserted a blank
space before or after a colon in the command header, or before a comma.
Example: VOLT:LEV ,10
-103 Invalid Separator
Error Messages
5-1
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