PLC Logic Sync In Soft Switchover Application.

PLCGurus.NET Live & Interactive Forum PLC Questions and Answers Rockwell, Allen-Bradley, Stratix PLC Logic Sync In Soft Switchover Application.

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  • #4043
    Arunkumar.daraArun Kumar Dara
    Participant
    Karma: 27
    Rank: Padawan

    Hi,

    I’m using 2 compact Logix PLC’s for a soft switchover application. I was able to sync my data variables like setpoints, scaling values, etc using message instruction.

    Now I want help to understand how to sync PLC logic also.

    Thank you,

    ArunKumar D

    #4046
    MrincredibleMister Incredible
    Participant
    Karma: 48
    Rank: Padawan

    Hi Arun,

    I’m just trying to wrap my head around exactly what it is you’re trying to do? I think what you’re asking or suggesting is that you want to have two identical controllers independent of each other running exactly the same logic in perfect synchronicity. You goal is this, in the event one controller fails, there’s an automatic fail-over to the second controller without any kind of interruption. Am I correct?

    #4081
    Arunkumar.daraArun Kumar Dara
    Participant
    Karma: 27
    Rank: Padawan

    Hi Mister Incredible,

    Yes, I’m trying to synchronize both controllers.

    need help on this.

    Thank you.

     

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