EG4 LIFEPOWER4 24V 200AH protocol documentation

[brick-co]

Hey there. I have 6 EG4 LIFEPOWER4 200aH batteries that I have linked together with the RS cables. When I connect to the batteries with the comm port adapter and run the "BMS tester" software that comes with the batteries, I am getting good data.

However when I look at the raw data coming back I cannot make heads or tails from it. I have looked over all your documentation and I cannot see that anyone has found what exactly this means

Here is the raw data

And here is what that translates to:

I know the first byte is the header and the second byte is the battery id. and the last byte is a check digit and a ctrl code like carriage return.

But I have no documentation that tells me what the data between is.

Any help would be most appreciated. I am creating my own program that reads this data and displays it in graphical form.

[mr-manuel]

Hello, I got this protocol documentation from the EG4 support. EG4-LifePower4 - MODBUS Communication Protocol (2024.07.05).pdf

If you have more questions it would be best, if you write the support team of the manufacturer through their website.