I'm trying to get my inverter to charge battery from grid thru modbus tcp/ip.
I finally got an answer from Fronius support, what values to which registers I need to write.
Writing to single registers works fine, but I have difficulties in figuring out two things:
How do I write a Negative value (-5000) to a register?
How do I write to multiple (4) registers, that is not in a sequence right after eachother (register 40349, 40356, 40357, 40361)?
I have attached an email snip from Fronius support and the relevant register map.
Exactly WHAT I made differently - I'm honnestly now quite sure (I'll figure it out)
The main thing is - It finally Works !!
I used the Buffer Maker - Buffer Parser and write it with FC6 for the individual registers.
I'll try the Link Out / In / Call, so I can sequence it all and create a Boolean trigger in Home Assistant to fire off all the Modbus Writes.
Thanks ALOT - how/where do I "buy you a coffee"?