Filter
Top Products
Features and Functions 2
34980A User’s Guide 65
• Errors are retrieved in first- in-first- out (FIFO) order. The first error
returned is the first error that was stored. Errors are cleared as you
read them. Once you have read all of the interface-specific errors, the
errors in the global queue are retrieved.
• Errors are cleared as you read them. When you have read all errors
from the interface-specific and global error queues, the ERROR
annunciator turns off and the errors are cleared.
• If more than 20 errors have occurred, the last error stored in the queue
(the most recent error) is replaced with -350,“Error 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
instrument responds with +0,“No error”.
• The front panel reports errors from all I/O sessions as well as the
global error queue.
• The interface-specific and global error queues are cleared by the
*CLS
(Clear Status) command and when power is cycled. The errors are also
cleared when you read the error queue. The error queue is not cleared
by a Factory Reset (
*RST command) or an Instrument Preset
(SYSTem:PRESet command).
Front Panel Operation: View > ERROR QUEUE
Use the knob to scroll through the errors. Press the right arrow key to
view the text of the error message. All errors are cleared when you exit
the menu.
Remote Interface Operation: The following command reads and clears one
error from the queue.
SYSTem:ERRor?