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I want to develop a software to read and write data to Schneider PLC, which is the format of %I and %Q using modbus TCP protocol (E.g. %I0.4.0 and %Q0.5.1).
Now, I just can read/write the %MW type address using function codes of 3 or 16.
So, how can I read or write that format data to PLC program?
Is that I can distinguish the format address using the function codes?
Now, I just can read/write the %MW type address using function codes of 3 or 16.
So, how can I read or write that format data to PLC program?
Is that I can distinguish the format address using the function codes?