For an ‘easy’ solution without having to mess around with modbus, take a look at this:
https://hub.docker.com/r/bushrangers/ha-voltronic-mqtt/
I’m currently using the docker setup on an extra (non-openhab) raspberry Pi positioned near the fuse box to read the values of my Victron BMV-702 Battery Monitor and my Alpha Outback SPC III inverter. If you do’t want to use Docker, scroll down to “Using inverter_poller binary directly” for instructions how to poll the device ‘manually’.
yes, but I want implement more devices. No only PV.
all is online:
but not sure what’s wrong in my configuration :
tcp slave:
poll:
data:
and item:
because no value.
In that case, i’ll be following this thread to may be learn how to use modbus directly 
hope this thread will help you and we will get it working 
That doesn’t mean your particular device is working Sunspec. Thought you were going to spend some time on this, not “do it for me”.
If you cannot find out, try it out
I checked once more on the sunspec page
https://sunspec.org/sunspec-modbus-certified-products/
and victron isn’t there.
I also tried before all sunspec options in modbus and wasn’t working
So I must go a harder way. Please can you check my configuration which I posted if you will see any error from my side ?
