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RUTX11 MODBUS TCP SLAVE NOT WORKING

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Hello,
I switch on the modbus tcp slave and I test with "Modbus Poll" by Modbus Tools
I read/write the holding register 203 "WiFi" on/off and I got error in read and write mode.
What is wrong?

Best Regards
Andrea

1 Answer

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Hello,

I have tested RUTX11 Modbus TCP slave  and it has worked.

Try to check what your Modbus master software uses register addresses or numbers, this can be an issue in the first place, since RUTX11 WiFi turn on/off register address is 203 and number - 204. Also, try to increase timeout waiting time.