question

frame77 avatar image
frame77 asked

Have CerboGX read PV Power via modbus from an openWB

Hi,

I have a SMA Sunny Boy 5000TL-21 Inverter that does not have an interface to Victron.

Visualization is done via SolarLog200 which is also not accessible by the GX.

I also have a Wallbox (openWB) that does read the pv power from the solarlog and provides the value on modbus TCP. Problem is, the GX device doesn't recognize the Wallbox.

Is there any way to have the GX read the PV Power?


modbus documentation: https://openwb.de/main/wp-content/uploads/2020/10/ModbusTCP-openWB.pdf

I need register #400 read by the GX.


Thanks!

Modbus TCP
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1 Answer
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rausimous answered ·

Can't you enable modbus tcp on your inverter

Does you inverter have a network (lan) connection?

Then conect to your inverter true either bleutooth or speedwire enable modbus tcp and search for pv inverters on your victron gx


It should work this way without your other controller between the 2

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Related Resources

Modbus TCP Basics