can i ask for modbus manual from who ? from powmr that sold me inverter ?
SRNE modbus manual you can get from PythonProtocolGateway/docs/SRNE_MODBUS_v3.9.pdf at 940a2ecf736549b9a802f122e4c4aea0e3a75edd · HotNoob/PythonProtocolGateway · GitHub
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Thank you @Dimumal !!! I was finally able to get this to work with PowMR POW-SunSmart SP5K.
To those that are having issues… MAKE SURE you follow the wiring diagram! Initially I didn’t bother wiring the ground wire between inverter to the TTL-RS 485 board and it didn’t work. Took everything apart and redid it all over and finally worked. Also takes about 5-10 mins before I see any data fed into HA so be patient.
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@Dimumal, your diagram says RJ45 pin 2 should be connected to TTL GND, but the color of the wire in your diagram is orange/white, which is RJ45 pin 1, not 2.
Was this a mistake?
(I am trying to make the connection, exactly like you did, and it’s not working)
It should be pin 2
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Great. It worked. Thanks a ton! My GND pin wasn’t properly connected.
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