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Chapter 5 Command Reference
Operating Status
5-42 Operating and Programming Guide
Reading the Error Queue _________________________________
This query returns the oldest error in the Error Queue and removes that error
from the queue (first in, first out).
See Appendix A, “Error Messages,” in this guide for detailed error information.
Response
The error response format is: <error_number>, “<error_description>”, where
• The <error_number> is an integer transferred as ASCII bytes in
<NR1>format (integer). The range is -32768 to 32767.
• Negative error numbers are defined by the SCPI standard.
• Positive error numbers are defined specifically for this Receiver.
• An error number value of zero indicates that the Error Queue is empty.
• The maximum length of the <error_description> is 255 characters.
Context Dependencies
:SYSTem:PRESet clears the Error Queue.
The queue is cleared (emptied) on *CLS, power-on, or upon reading the last
error from the queue.
If the Error Queue overflows, the last error 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 is discarded.
The maximum length of the Error Queue is 30.
:SYSTem:ERRor?
RESPONSE FORMAT
Returns the oldest error in the Error Queue and removes that error
from the queue (first in, first out).
±
dd,“XYZ”