Cannot read data by MODBUS RTU

I was playing with a PZEM-016 last Saturday. It was pretty straightforward to enable the communication. I still could make a quick dashboard (a couple of errors pending to correct though) to make it more fun. I will check your flow tomorrow (going out in few minutes). Please edit your message to reformat the code between backticks (click this link for instructions), otherwise i wont be able to test.

energy-meter

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