Keysight Technologies N4960A User Manual page 161

Remote Operation
Command
:SYSTem:ERRor?
Description
Responds with oldest Event/Error Log Report from the queue and
removes it from the list of unread messages.
Example
:SYST:ERR?
-222, "Data out of range"
Command
:SYSTem:ERRor:ALL?
Description
Return all Event/Error Log Reports (read and unread).
Example
:SYST:ERR:ALL?
-100, "Command error", -222, "Data out of range",
-224, "Illegal parameter value"
Command
:SYSTem:ERRor:COUNt?
Description
Query the error/event queue for the number of unread items. As errors
and events may occur at any time, more items may be present in the
queue at the time it is read. If the queue is empty, the response is 0.
Example
:SYST:ERR:COUN?
Keysight N4960A Serial BERT 17 and 32 Gb/s User Guide 161