Command
:SYSTem:PRESet
This command presets the setting state of the E4991B to the original factory setting (Default Conditions). This command is different from *RST as the continuous startup mode (:INIT:CONT) of channel 1 is set to ON.
Ana.WriteString ":SYST:PRES", True
Preset (When System > Misc Setup > Preset Setup > State > Factory is selected.)
SCPI.SYSTEM.PRESET