The on board EMS is totally controlled through the Spyder system. Your watchdog will act as a first line of defense as it's better to lose it instead of your transfer switch, which is where that EMS is located.
There is an operating manual on the Spyder web site for the LCD control panel that will explain a lot of the functions.
https://spydercontrols.com/customer-login/ User name: Tiffin - PW: Motorhomes (case sensitive)