Cerbo GX to Daly BMS Canbus communication

DIY
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1

Good morning all.

Will my 4 Daly BMS’s (newest model) communicate with my Cerbo GX via the Canbus 485 bus? I’m assuming the protocol is generic but I’m reluctant to just “plg them in and try” for fear of damaging either the BMSs or the Cerbo.

The Dalys use GH1.25 sockets so I’d have to make up some cables but if I’ve understood correctly I’d go from Cerbo to BMS 1 Canbus 1 connector. BMS 1 canbus connector 2 to BMS 2 Canbus connector 1 and so on and then use the terminator on BMS 4 canvus connector 2?

2

No … Daly is not supported by Victron and the BMS’s will not be found. You have to use external scripts on your cerbo to use them.

Your wiring assumption is correct.

Jens

3

That’s a shame, but thanks for the quick response Jen.

4

I did connect CAN, but it lasted for 5 seconds, and BMS went offline. If I unplug and plug it back in, sometimes BMS appears, and sometimes not. It lasts for 5 seconds. I used communication board and custom network cable.