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Modbus RTU

Posted: 15 Oct 2024, 16:09
by AlbTur
Hi,
I am interested in using the RevPi Connect 4 as a Modbus RTU master and would like to utilize the built-in RS485 port on the device. Is there any guides or resources on how to make this using C or Python?

Any help would be greatly appreciated.
Thanks in advance!

Re: Modbus RTU

Posted: 16 Oct 2024, 13:44
by dirk
Hello AlbTur, well this is a good example on how to do it the RevPi way.
Configure the Modbus RTU communication, i.e. via "Video tutorial – Modbus RTU Master".


Then you can access the process image to indirectly access the Modbus communication that uses the RS485 interface.
If you like Python then take a look at this helpful article Revolution Pi Python Introduction