Deye SUN-12K need help

[Elektro Mlasko]

Hello all, I am also new here.
I have Deye Inverter SUN-12K-SG04LP3-EU and batteries 6xTAB L5.1 (30kWh).

I want to switch between work modes via Modbus 485,
but I don't know enough about the modbus command set and registers. I only know things theoretically.

The basic idea is the following:
Buy energy from the grid when it is cheap and sell it together with energy from my own solar power plant when it is more expensive.
I have a contract to buy and sell at the current exchange price (hourly).
Manual setting via buttons and display works well, but it is time-consuming and so unwieldy.

Own consumption is very little, it is mainly a production device for the production of electricity for sale.
If anyone has any ideas or can help me I will be very grateful.

 

[MisterSandals]

Have you looked here?

Search results for query: SUN-12K-SG04LP3-EU

diysolarforum.com

If you see someone with expertise, you could send them a message for help.

I dunno your answer but hopefully this helps.

 

[houseofancients]

Hello all, I am also new here.
I have Deye Inverter SUN-12K-SG04LP3-EU and batteries 6xTAB L5.1 (30kWh).

I want to switch between work modes via Modbus 485,
but I don't know enough about the modbus command set and registers. I only know things theoretically.

The basic idea is the following:
Buy energy from the grid when it is cheap and sell it together with energy from my own solar power plant when it is more expensive.
I have a contract to buy and sell at the current exchange price (hourly).
Manual setting via buttons and display works well, but it is time-consuming and so unwieldy.

Own consumption is very little, it is mainly a production device for the production of electricity for sale.
If anyone has any ideas or can help me I will be very grateful.

You could use Solar Assistant <-> mqtt <-> home assistant <- nordpool