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Showing content with the highest reputation on 03/27/2017 in all areas

  1. Hopefully you've already figured this out, but just in case you haven't.... If you want to prevent other programmers from seeing a particular screen configuration, you can right click on the screen name(in the Solution Explorer), then select "Password Protect" If you want to prevent unauthorized access to the screen during operation, you can assign a button on another screen("Main Menu", for example). Then, in the Properties Dialog box for the button, add a new "Load Screen" Action, then set the User Access property. In the Solution Explore, use the "User Access Control" to
    1 point
  2. After actually playing around a bit, it appears that the transistions in Visilogic do not function anything like I thought they did either. As Alex hints at, it appears that the memory bits associated with change of state are sampled on each and every subroutine, including the main subroutine. This means that if you call the same subroutine twice or more within one total PLC scan, any transitional within will only be evaluated true the first time through. However, that transition will still be detected by the calling subroutine and subsequent other subroutine calls within the global scan.
    1 point
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