Error Messages - Keysight N7744A User Manual

6
Maintenance and Troubleshooting

Error Messages

SYST:ERR?
Hardware Error
Data Sanitation
Memory Inventory
98
The syst:err? command returns the next error from the error queue
(refer to the Programming Guide for details).
Each error has an error code and a short description of the error,
separated by comma. Please note that the error codes are returned as
signed integer numbers in a range from -32768 to +32767 (INT16).
Negative error numbers are defined by the SCPI standard, positive error
numbers are device dependent.
If the Red "Error" LED on the front panel is illuminated it may indicate
a hardware error. The defective channel(s) is then deactivated and is
no longer in specification. The unit should be sent for repair. The
command Stat[n]:ques:cond? can be used to identify the defective
channel, as detailed in the Programming Guide.
Example: Stat2:ques:cond? -> 1
Indicates a hardware error on channel 2 of the N7747A or N7748A.
The instruments have the following memory size:
EEPROM 2 Mb for N7744A and N7747A. 3 Mb for N7745A and N7748A.
This memory does not contain any customer data.
Flash ROM 16 MB. This memory can contain calibration data, and so
on, as well as user parameter settings, zeroing data and logged
information (the log contains limited operational information).
Keysight N774x Series