richardl64 / solar Goto Github PK

Hello @RichardL64 this is a really neat project. I am going to install a Solis S6 inverter next week (whilst waiting ever longer delayed GivEnergy hybrid inverter) and have a crack at this. I have used the Arduino nano33 to monitor power in circuits via a Clamp Transformer so this looks like a good next project.
Which RS485 interface did you use? I can see HW-0519 on the circuit board but need another pointer.
I had trouble sourcing the Exceedconn plug but think I may have found a reliable UK source for those.
And to the point....my power meter publishes data via MQTT so that I can view/log in Home Assistant. Did you ever consider that? When I have made a bit of progress on the local version I may be able to create an MQTT capable version to feed-back if that helps?

Hi,

Richard, you code base has been a massive help in my project. I have a Solis RAI-3K-48ES-5G, setup for UK G98 standards. Ive been able to get a number of registers reading into my project on another board via reading an HTTP JSON result. Ive added this project to my public project (First one ive posted! Its still a work in progress to prove the concept).

For my colourful energy display, i need to know the PV inverter output, battery output and grid import, but i cant find a register for the PV data from the CT connected to the RAI. The inverter LCD has the following parameters;

PV-CT voltage
PV-CT current
PV CT power

Do you know what the register may be for the PV-CT power reading? Your program uses 33057 for PV power, but for me that always reads as zero.

I am using the following registers:
33135 (battery direction),
33079 (inverter active power, without direction but i combine with 33135)
33130 (RS485 energy meter on grid connection)

My PV inverter is also Solis, the Mini Inverter 2500-4G, so if i need to then i can also probe that directly. If i was to do that, can you point out in your code where the MODBUS address value (currently 01 is set on the RAI inverter) would live so I could poll the Solar inverter too on the same wire?

Many thanks for any help you can provide,

Stuart

Combine your project with mine and you will have both projects/solutions in tandem.
https://github.com/alienatedsec/solis-ha-modbus-cloud
Happy to work together on this.