Making a flow for Sessy battery

Dear members,
I would like to make a flow for my Sessy battery: If my battery is set to dynamic and I use power above 1200 watts then power from battery. after use back to dynamic.

Many thanks.

Dear members,
I would like to make a flow for my Sessy battery: If my battery is set to dynamic and I use power above 1200 watts then power from battery. after use back to dynamic.

Many thanks.