Applies To:
  • CitectSCADA 6.xx
  • CitectHMI 6.xx
Summary:
TrnSetTable() does not write to the correct sample period when the data period passed in does not match the actual trend period. That is, if you pass in a value for the period parameter of TrnSetTable() which does not match the sample period defined in the trend tag database.
 

Solution:
This problem does not apply if you pass in the actual sample period of the trend tag as the Period parameter of TrnSetTable(), or use the value 0 (which uses the trend tag sample period).
Citect has confirmed this to be a problem in CitectHMI/SCADA versions v6 to v6.1a.  We are researching this problem and will post new information here as it becomes available. 
Keywords:
trnsettable, trend, redundancy  

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