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    Entry type: Application example Entry ID: 37236961, Entry date: 08/07/2018
    (2)
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    Wiring and Voting Architectures for failsafe Digital Input (F-DI) and Output Modules (F-DO) of the ET 200M

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    • Associated product(s)
    Several failsafe digital signals shall be monitored and failsafe actuators shall be controlled in a plant. Depending on importance and failure risk, there are several options of wiring and voting the signals.

    The voting can, for example, be realized in the digital input modules and/or in the CPU. The various possibilities of wiring and voting failsafe signals are illustrated in this application example. Additional the wiring and voting of failsafe outputs are illustrated too.



    Featured architectures
    • One sensor (1oo1)
    • Two sensors (1oo2) – voting in the F-DI
    • Two sensors (1oo2) – voting in the user program
    • Control of actuators

    Downloads
      Wiring and Voting for failsafe F-DI and F-DO (3,6 MB)

    Last Changes
    Complete revision

    Additional keywords
    F Systems

    Security information
    In order to protect technical infrastructures, systems, machines and networks against cyber threats, it is necessary to implement – and continuously maintain – a holistic, state-of-the-art IT security concept. Siemens’ products and solutions constitute one element of such a concept. For more information about cyber security, please visit
    https://www.siemens.com/cybersecurity#Ouraspiration.
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