Good evening, new joiner to the group and first post.. also a novice..
So, I have a Growatt SPH 5000 inverter, all working perfectly ok...
Prior to me purchasing the inverter and installing, I joined my uncle in a purchase of batteries from a company called bluesun in China. I purchased 2 x 5.7kw batteries. The batteries were advertised as being compatable with Growatt.
However, when connecting to the inverter I get a BMS Comms fault.
So I figured I'd isolate the problem, initially connecting the batteries via rs233 or rs485 to a PC to ensure they were communicating ok. I have also seen online that similar batteries online, you can change the communication protocol in pbms tools to Growatt..
I have been through 6 USB adaptors of various types, I have now managed to connect to a single battery Via rs485, but as soon as I connect the 2nd battery and tweak the address settings, I get an address error in pbms tools.
I cannot connect via rs232 at all, I get nothing at all.
What I have learned from the connection via rs485, the BMS is PACE. What I have read is that to change the communication protocol to Growatt, this can only be done via rs232, not rs485.
Connection to inverter aside for a moment, I think initially I want to get the batteries connected together and addressed correctly, then move from there, ideally through rs232.
Does anyone have any advice, would be greatly received.
So, I have a Growatt SPH 5000 inverter, all working perfectly ok...
Prior to me purchasing the inverter and installing, I joined my uncle in a purchase of batteries from a company called bluesun in China. I purchased 2 x 5.7kw batteries. The batteries were advertised as being compatable with Growatt.
However, when connecting to the inverter I get a BMS Comms fault.
So I figured I'd isolate the problem, initially connecting the batteries via rs233 or rs485 to a PC to ensure they were communicating ok. I have also seen online that similar batteries online, you can change the communication protocol in pbms tools to Growatt..
I have been through 6 USB adaptors of various types, I have now managed to connect to a single battery Via rs485, but as soon as I connect the 2nd battery and tweak the address settings, I get an address error in pbms tools.
I cannot connect via rs232 at all, I get nothing at all.
What I have learned from the connection via rs485, the BMS is PACE. What I have read is that to change the communication protocol to Growatt, this can only be done via rs232, not rs485.
Connection to inverter aside for a moment, I think initially I want to get the batteries connected together and addressed correctly, then move from there, ideally through rs232.
Does anyone have any advice, would be greatly received.