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Thread: Control bit not active

  1. #1
    Join Date

    Default Control bit not active

    I am facing an issue with SEL 451 control bits (RBGGIO bits). They seem to become inactive by themselves. I import them into zenon, link them with a button and they work fine. After sometime or after restarting the button dosent work i.e. no value is sent to the bit. If i link the same variable to a numerical value on any screen and then manually change the value it works and the button also starts working. Can anyone guide me on how to solve this issue?


  2. #2
    Join Date
    Salzburg, AT

    Default Re: Control bit not active

    what driver? what is the data type and addressing of variables?

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