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you can either build your own framer, if all request share a common pattern. Or add custom function codes, that adds what you need. |
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However it sounds a bit like your inverter is not really using the modbus protocol. A lot of inverters need a primary request with the information you talk about to verify the connection, this is done by adding a custom function code. Adding that information to each request is really non-standard and might break a number of other parts. |
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Has somebody used pymodbus to talk with Deye solar inverter?
To read registers from the inverter it's needed to add more stuff to the "read package request" like a "controle code" and the inverter serial number.
My first idea is to build a own "framer" based on
ModbusRtuFramer
and use thebuildPacket
method to build the complete package. Is this the correct way to go?Beta Was this translation helpful? Give feedback.
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