Applies To:
  • CitectSCADA 5.10, 5.20
Summary:
A GPF may occur when executing ctFindFirst() queries with the Alarm query syntax. A similar problem may occur when calling recursive Cicode Post functions via ctFindFirst(). 

Solution:
CIT has confirmed this to be a problem in Citect for Windows versions 5.10 to 5.20. This problem has been fixed in version 5.21.

A workaround to this problem is to put the SleepMS(1) statement at the beginning of all affected Cicode functions, for example, CTAPIAlarm() in the include\Citect.ci file.

 
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