Not sure if this is the correct section, however I've been looking for energy monitoring solution.
My solar system is in a shed 100m away (lots of digging). I have ethernet for Internet but need Internet so can't use ethernet for rs485 alone and power lines obviously run to the shed. Therefore I needed a way to send load energy meter data to multiplus ii in shed.
I have 100a supply and didn't fancy the added cost of the ethernet supported meter with ct clamp (which I found very painful to even find where to buy in the UK)
I therefore took a risk with the et112 and two rs485 to eth adapter from waveshare (I purchased them on pihut)
They're quite cheap feeling and the Official name is RS485 TO ETH (B).
The setup being one rs485 to eth setup as a client the other as a server.
Et112 rs485 -> RS485 to eth client device in consumer unit - > Internet
-> rs485 to eth server device in shed - > rs485 to usb to raspi/multiplus
Just wanted to share as the rs485 to eth were £20 each so much cheaper than ethernet meter.
It also doesn't require installing custom firmware/drivers ie what some folk seem to have done to get other brand ethernet meters to work ie shelly 3m. Which was more daunting for me to attempt.
Any questions give me a shout