Hello,

For those who are interested, I have found the source of the problem. My mistake was to add the following lines to the CODESYSControl.cfg file:
[SysCom]
Linux.Devicefile=/dev/ttyUSB0

instead of the lines :
[SysCom]
Linux.Devicefile=/dev/ttyUSB

Regards,

Hello dirk, thank you for your reply.

The interface of my USB - RS485 interface is ttyUSB0 ttyUSB0.png .
In codesys I configure the COM PORT as follows: portCODESYS.png .
I've added the necessary lines to CODESYSControl.cfg:
[SysCom]
Linux.Devicefile=/dev/ttyUSB0

By the way, this file is located ...

I want to use my Revolution Pi Core S as a Modbus master.
My configuration: ARM64 Linux runtime, baudrate 19200, parity EVEN, 8 data bits and 1 stop bit.
I first followed this tutorial to configure the revolution pi via Pictory: https://youtu.be/gaJ6-D4Vd6A

First problem: in Pictory, after adding ...