Modbus T10-G3->DTSU666->Elfin EW11
Hi,

Right now this is my set-up:
Inverter T10-G3
Smart meter DTSU666

They are connected with a cable and i have data about solar production and grid import/export only when inverter is working through day. So i wanted to upgrade it so i could have power monitoring 24/7. with help of Chat GPT i bought Elfin EW11 for this.

i'm made connection between T10-G3 inverter->smart meter Chint DTSU666 and Elfin EW11 for Modbus to wifi communication. Here is wiring i made: https://i.postimg.cc/pdMcVrhV/Modbus.png

since im not good at it im using Chat GPT to set-up Elfin EW and install Home assistant. I cant find clear instruction online for all this: how should it be wired, how to set up EW11, and installation of Home assistant.

Can someone help me with any instructions, manual or tell me in advance if its possible with this hardware configuration to get 24/7 energy monitoring even when inverter is shut down.
Re: Modbus T10-G3->DTSU666->Elfin EW11
https://midsummerwholesale.co.uk/pdfs/e ... v1.0.7.pdf
Page 23 & 24, you cannot use the meter wiring for your modbus.

As mentioned above, except the USB port, there is another communication port with a multi Pin
connector for monitoring and communication on this series inverter. Depending on different version
device, three different connectors are possible for this multi pin connector. Depending on different
connectors, two RS485 ports are possible. RS485-1 can be used to monitoring the inverter. RS485-2 is
used to connect a smart meter(single machine anti-backflow function).
Re: Modbus T10-G3->DTSU666->Elfin EW11
What do you mean i cant use?
i saw online that people connect inverter, DTSU666 and EW11.

then what are those 2 ports: RS485 communication port and meter communication port?
Re: Modbus T10-G3->DTSU666->Elfin EW11
Those are Fox Ess's documents, it seems you have to use the correct pair of connections on the Inverter and not the meter connection pins.
Re: Modbus T10-G3->DTSU666->Elfin EW11
Do you know ho wiring diagram should looks like? i have 0 exp with RS485
Re: Modbus T10-G3->DTSU666->Elfin EW11
You need to open the PDF to the pages specified.
As there are 3 connector choices, and 2x tables of wiring.

I do not know what connector you have.
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