Applies To:
  • CitectSCADA 5.20, 5.21, 5.21 Service Pack A, 5.21 Service Pack B
Summary:
If when using CTAPITrend(), the trend history query has go across over 24 days, the part of the samples will contain invalid value in "TIME" field. 

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

The changes have been made to the following Cicode functions:

TrnExportCSV()

TrnExportDBF()

TrnExportClip()

TrnExportDDE()

The following example shows the trend export from old output and new output:

TIME DATE TIME DATE
23:00:00 1/1/99 23:00:00 1/1/99
26:00:00 2/1/99 02:00:00 2/1/99
29:00:00  2/1/99 05:00:00 2/1/99
OLD   NEW
 
Keywords:
 

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