Technique of WinCC Long-Distance Accessing Exterior SQL Server Database

The technique of configuration software WinCC accessing to exterior database has been studied. Take the coal mine automation system as background, the data in exterior SQL server database has been displayed in the WinCC configuration graphic real-time by calling the ADO control in VBScript system. The integration of WinCC configuration system and exterior database has been achieved. simultaneity, the capability of this system also been tested, thus the result proves that the developed system can run steadily and effectively.