Hi, I’m trying to read info from my Growatt MID 17KTL3-XL with RS485 to Ethernet Converter RS485 to Ethernet Converter, EU head (waveshare.com) but I’m not getting any info from the Inverter. I also tried 9600 in the Baud Rate no difference
I am connected via COM port pin 3 and 4
And configured the converter in the following way.
Not sure why you posted in ESPHome section as it’s not related with ESPHome !
Did you get the serial protocol of the device you try to control ?
What wiring did you do between the device you want to control and the RS/Ethernet adapter ?
Your connection looks ok. But your inverter is not going to output anything if you don’t make specific requests.
I suggest you to read some basic tutorial how modbus rtu works. After you understand that, you are able to ask questions and we can help.