I have a MuliPlus Compact 24/2000/50-30 230V.
I wish to have it charge up batteries, then when the power goes out (happens daily where I live), then it runs off the batteries. However testing it with a multimeter shows that it drains the batteries when the power is there, then charges them up, then switches back to running off the batteries. The net effect when the power does go off, the batteries may be full, or they may be almost empty.
I bought a MK-3 USB to connect to it to see what's going on.
Unfortunately I could not connect to it. I followed all the troubleshooting guides I could find.
Could anyone tell me if this MultiPlus supports VE connect? I read in the manual that I need to check the firmware number, but from what I can tell you need to be able to connect to it to get the firmware version, chick and egg scenario.
I tried both ethernet ports, it does not connect with either. Tried multiple cables. Looked into installing extra FTDI drivers. The MK3 seems to be picked up fine by the operating system fine. The inverter is on, and the UTP cable is a normal unshielded RJ45 plugged into the MK3, I started with a longer ethernet cable, but ended up trying with a 1m long cable. I have rebooted multiple times, scanned multiple times, tried difference sequences of running the search and then powering up the inverter. I spent two hours on this last night while the kids were sleeping and got nowhere.
First step I would guess is to figure out if my inverter supports MK3/VE Connect (or is the firmware too old?). You can see photos below of what I think would help one figure out if it does.