Hello, I need to understand the step by step process to add a mod bus RTU RS485 communication, I use it in slot 4 as a master for my slave, which is a third party system. I added the MODBUS libraries and how do I test this communication because the third party equipment does not provide addressing. Another question is whether I need to install a MODBus RTU driver in the core to carry out this manufacturing of the s20 module or would it just be the library?
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