Venus with MPPT / Sunsynk playing together

Inverters Sunsynk-Dye
1

Hi Guyz,

Just wanted know if had a common dc bus would I be able to Sunsynk 8k with Venus GX, 1 x Blue solar and 1 x Smart Solar. I manage to split the CAN bus signal to both Venus and Sunsynk 8k (getting readings on both Venus and Sunsynk about Voltage,SOC,SOH,etc)

  1. Am I allowed to do that ? Spilt signal to 2 devices
  2. Will it work (having the victron mppts charge the batteries and the builtin mppts feed the non-essentials and essentials)
    Thank you in advance and advise as always valued
2

Yes. But with some caveats. The GX throws out some CAN frames to tell the battery that 1) the inverter is alive, 2) the inverter is a Victron. Other than that, the GX is passive and simply reads the information that is broadcasted on the CAN-bus. As long as the other inverter doesn’t freak out on a 0x305 and 0x307 CAN id, it should work fine.

This is exactly how CAN-bus is supposed to work anyway. It is a bus network by which various components lets others know what they are doing, and where more than one component may be listening to the same thing (eg in a car there might be multiple things interested in the speed sensor on the wheels, which is used both for ABS and the speedo on the dash :slight_smile: ).

Technically it will work. In practice, the numbers calculated by the GX will be off of course, cause it doesn’t know about that extra DC load…