Keysight N432A Programming Manual page 383

Query example
SERV:BACK:BRIG?
Error messages
– If the backlight is not turned on, error –310,"System error" occurs.
– If the intensity level is set outside the valid range, error –222,"Data out of
Keysight N432A Programming Guide
range" occurs.
Queries the backlight intensity level.
SERVice Subsystem 13
383