I will like to know why is necessary to use the NOE with a M340. I know when using the NOE it enables the IO Scanning but I know that the M340 has a modbus tcpip port and you can use the READ VAR to read register from other devices. What is the advantage of using the io scanning instead of the function block READ VAR? Does it really gives me an advantage using the NOE? Thank you very much for your time.
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