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Suppose I need to implement a telementry project using two standalone Siemens S7-22x (e.g. S7-226) PLC, they have to communicate over a leased line so that information on each end (e.g. I, Q, M, DB..) can be read/write by the other end, how should I do it? Is it complicated? Please do suggest any necessary equipment other than the PLC that I need to implement this. (I know I must need a modem or something)
Any help or example is appreciated.
Any help or example is appreciated.