Rob99

No they didn't but to be fair I didn't ask for it as I don't have their batteries.

As promised, here is my schedule of modbus registers. These are based on the registers in my single phase 8kW ECCO inverter and various documents and information I have found and been sent by others. Interestingly, I asked Sunsynk for a copy of the registers and they sent me the v118 chinese drafted document 🤣😂 Some explanations: The registers are listed from 0 as my modbus device doesn't require the full "40000" number so you may need to add 40000 if your modbus device requires the full register address to read correctly. My modbus converter only reads individual registers and values so, for example, the serial number registers are shown seperately but some modbus devices will read these as a multi-register single string output. Some registers have no further information or detail but are still listed numerically for completeness. As and when I find out more details I will post them here as updated versions. Please let me have any comments and any additional information to fill in any blanks etc. 8kW ECCO Register Info v1.xlsx

Thanks @Joerg At the moment I'm getting around 150 confirmed data points extracted. My aim is to check and list all registers although so far I've not found much above 320

Yes, that would be useful to compare with what I have. @Sc00bs @kellerza thanks for that info too Once I finish my table I will share it here

I've been working on compiling a table of modbus registers from my 8kW Sunsynk but will be a few weeks longer as I'm not able to work on it continuously. Happy to share once I finish.

Hi All I've successfully connected my Sunsynk 8kW inverter to my Loxone automation system and can read/write most of the modbus registers I need but I am struggling to find which registers are used for the toggle switches on the basic setup page, as below. I can't find in any documentation I've located which registers these are or if they are combined and I need to read specific bits from a 16bit register. It's the time sync one i'm mainly interested in. Thanks