I have an SMA Sunny Boy 5000TL that has been running with an Multiplus 5kw for 5 years now but we recently installed an Lithium bank as well as more panels but connected them on a separate Victron MPPT, but now the Sunny Boy has a lot of excess capacity and is pushing back into the grid. There is no Comms installed between the Multiplus and the Sunny boy only an Victron current sensor was installed and on the CCX it only shows PV invertor, is there a way in have the two units talk to each other? to try and limit the grid feedback. The Sunny Boy does have an network module installed, Any help would be appreciated.