I’ve setup a Multi RS Smart 48V/6000VA/100A with a cerbo gx and ET112 energy meter and a LifePo4 battery with a JK bms to use Victron’s ESS.
Everything is connected to the cerbo gx and works great!
I done ESS setups before but with this setup it looks like the Multi RS does not sees the energy meter. So it cannot compensate for any power usage with the fully charged available battery..