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Controls flicker

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Ryan
2011-05-24
2013-05-30
  • Ryan

    Ryan - 2011-05-24

    Hi Archie,
    I am experiencing an issue in that every time I get an input on the PLC, most of my indicator style controls (i.e. Annunciator, Basic Light, etc.) flicker.  I can't seem to figure it out…

    Thanks very much,

    Ryan

     
  • Ryan

    Ryan - 2011-05-24

    I should add that I am using the ethernet driver…
    Thanks.

     
  • Archie

    Archie - 2011-05-24

    Someone else had this same problem and we never resolved the issue. The first thing to check is to make sure none of the controls overlap. Do all of the controls flicker when any of the value update?

     
  • Ryan

    Ryan - 2011-05-24

    Not all, only some of them - mainly Annunciators, Pilots, and Basic Lights.  Nothing is overlapping.
    Thanks.

     
  • Archie

    Archie - 2011-05-24

    Two things to check. Make sure this code is in the control that is flickering and the MyBase.OnPaintBackground is commented out.

        '* This is part of the transparent background code and it stops flicker
        Protected Overrides Sub OnPaintBackground(ByVal e As System.Windows.Forms.PaintEventArgs)
            'MyBase.OnPaintBackground(e)
        End Sub

    Also check the DoubleBuffered property for your form. It should be true

     
  • Glenn

    Glenn - 2011-06-02

    I'm seeing it with any Annunciator and BasicLight that are True when a BasicButton or MomentaryButton are pressed when property set as toggle.  Doesn't happen when property is a set or reset.

    Any idea?

     
  • Archie

    Archie - 2011-06-02

    The next release that has been completely revamped will be posted on June 13, so the best thing I can recommend is to wait for the latest release and try that one out.

     
  • Glenn

    Glenn - 2011-06-03

    That sounds great.  Thanks Archie I look forward to trying it out.  I contacted you a couple of weeks back about the Modbus driver.  I was able to get it working with a GE Fanuc 90/30 for Coils with a few changes - haven't had a chance to test anything else.  Are you releasing new drivers too?

     
  • aaron tanquerel

    aaron tanquerel - 2011-07-28

    Did you ever fix this, as I had the same problem?

     
  • Archie

    Archie - 2011-07-28

    I have actually never been able to replicate the problem.

     
  • aaron tanquerel

    aaron tanquerel - 2011-07-28

    sorry, i meant that for the other guys.  archie, see my other post about flicker. thanks,

     

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