Technical data

16 Error Messages
142 U2761A Programmer’s Reference
Error Messages
Error messages are created once an erroneous condition has been
detected.
• Errors are retrieved in first- in- first- out (FIFO) order using the
SYSTem:ERRor? command. The first error returned is the first error
that was stored. Errors are cleared as you retrieve them.
• 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 when you read the error queue, the U2761A
responds with +0,"No error".
• The error queue is also cleared by the clear status (*CLS) command or
when power is cycled. The error queue is not cleared by an instrument
reset (*RST) command.
Command errors
The following table shows the list of command errors.
Tabl e 16-1 Command errors
Error number Command errors
–101 Invalid character
An invalid character was found in the command string. You may have inserted a character such as #, $, or
% in a command keyword or within a parameter.
–102 Syntax error
Invalid syntax was found in the command string. You may have inserted a blank space before or after a
colon in the command header, or before a comma.
–103 Invalid separator
An invalid separator was found in the command string. Check for proper usage of , ; :
–105 GET not allowed
A Group Execute Trigger (GET) is not allowed within a command string.