I've got a ESS with 3 BMZ batteries (364Ah), MultiPlus 3000/48V, Venus, ET340 together with SMA Tripower 20.
Latest firmware on MultiPlus and Venus.
ESS Assistant on MultiPlus acc documentation for BMZ.
System is charging with PV surplus but not discharging, see below.
I tried a lot already incl. reconfiguring Multi, exchanging the Venus with a CC, but no change.
Does anyone has an idea?