What means OLE for process control?

In abb 800XA controller system they OLE for process control how it is related.What means OLE for process control?
when you configure 800xA for DA, there is an option to use OLE for Process Control(OPC).





What it means is, your source of data for access/acquisition will be lying outside of the system and OPC is the mechanism by which you access it. For example when DA is required from external files , e.g Excel spreadsheets, MS-access database etc. Technology is from Microsoft based on open standards.What means OLE for process control?
Hi DORA S.





OLE (Object Linking and Embedding) is Microsoft's component document technology. With OLE, you can dynamically link files and applications together. An object is a combination of data and the application needed to modify that data. You can embed objects in or link them to documents created with a different application.





For instance, an Excel spreadsheet can be embedded within a Microsoft Word document using OLE. Double-clicking the embedded spreadsheet will launch Excel and allow the user to modify the sheet.





Some applications include small applets that are used to create objects. For instance, Microsoft Word includes a drawing tool (MS Draw) and a tool for manipulating characters as art (Text Art) which can be launched only via OLE.





For more information, visit the Microsoft Developer Network page. Link is given below,


http://msdn.microsoft.com/en-us/default.鈥?/a>





Regards.