I see that there are many FBs in CXA_ModbusRTU behind the heading CXA_S20. These are all FBs based on the S20. I assume that I can't use these FBs when working with a Modbus RTU module from beckhoff (EL6751), can I? If not, is this Modbus RTU library also usable for third party RTU modules?
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