Applies To:
  • CitectSCADA 5.10, 5.10 Service Pack A, 5.10 Service Pack B, 5.20
Summary:
The CTAPI function ctTagRead() always returns TRUE even if the I/O device is in a #COM state. 

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. 
Keywords:
 

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