4/26/2012 8:47 PM | |
Joined: 9/27/2006 Last visit: 5/5/2024 Posts: 12257 Rating: (2666) |
hello Rajkiran; WinCC Connectivity pack (a licensed product) will connect HDA to WinCC; see the following FAQ: The WinCC/Connectivity Pack option provides among other things an OPC server that supports the specification OPC Historical Data Access 1.1 (OPC HDA). Using OPC HDA you can have read or write access to the WinCC archive system. Using WinCC OLE DB it is possible to gain direct read access to the archive data stored by WinCC in the MS SQL server database (process values, messages and user data). Here you can even use statistics functions (Minimum, Maximum, Average, Variance, for example). Here you can read data from several archive variables simultaneously with one access. The results here can be provided on request with a common time stamp and interpolated. More detailed information is available in the WinCC Connectivity Pack documentation http://support.automation.siemens.com/WW/view/en/22578952 Hope this helps, Daniel Chartier |
Last edited by: dchartier at: 4/26/2012 11:22 PM |
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