Applies To:
  • CitectSCADA 3.xx, 4.xx, 5.00, 5.01, 5.10, 5.20, 5.21
Summary:
I have been changing my Trend Scales on the trend page and I cancelled one of these changes by closing the "New 100% Scale Value" using the "X" close button.  After doing this I can no longer set any new scales without shutting down and restarting my project. 

Solution:
You can modify the function TrendSetScle in the Citect Include project.  Add mode 128 to the current mode 24 to disable the closing of the New Scale forms from the system close ("X") button.

eg.

    IF hCTSForm = -1 THEN
        hCTSForm = FormNew(sTitle, 26, 4, 24 + 128); // was 24

CIT has confirmed this to be a problem in Citect for Windows versions 3.X to 5.21.  We are researching this problem and will post new information here as it becomes available. 
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