ET 200pro distributed I/O system
Operating Instructions, 03/2013, A5E00335544-08
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What are distributed I/O systems?
Distributed I/O systems
Process I/Os are often installed as a central integral in the automation system configuration.
Greater distances between the process I/O and the automation system may require
extensive and complex wiring, which could make the system susceptible to electromagnetic
interference and thus impair its reliability.
Distributed I/O is the ideal solution for such systems:
● the master CPU is located centrally
● the distributed I/O systems (inputs and outputs, intelligent preprocessing using intelligent
slaves) operate locally at a remote location
● the high-performance PROFIBUS DP and its high data transmission rates provide a
smooth flow of communication between the CPU and the distributed I/O systems
● PROFINET IO
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