Are you having difficulties incorporating the OPC data into your Web-based solution, or getting them over Internet in general? Need to do it quickly and in quality? If so, QuickOPC-Web comes to the rescue.

QuickOPC-Web is a set of components that simplify the task of making traditional OPC data available over Internet. It provides a Web service that can be consumed by various tools, including a browser-based JavaScript code that can obtain and display OPC data without need to refresh the whole page. Reading a value from OPC Data Access server, or writing a data value can be achieved in small amount of code. Consuming component for .NET is also included, making it possible to "tunnel" OPC data with the use of Web service, and use them in your .NET application.

• Specifications: OPC Data Access 1.0, 2.0 and 3.0, OPC Universal Architecture (under development).
• Tested for compliance with standards and interoperability.
• Supports operating systems from Windows 2000 to Windows Vista, Windows 7 and Windows Server 2008.
• Multi-threaded, non-blocking design for high performance.
• Internal messaging layer provides isolation between OPC communications and the custom client code, resulting in high resiliency.
• Automatically connects to and disconnects from OPC Servers.
• Automatically adds, removes and maintains OPC groups and items.
• Conserves resources behind-the-scenes by automatically disposing of objects that are not being used.
• No limits to number of connections, subscriptions, or tags.
• Automatic server status checking, detection of connection problems and server failures, and automatic reconnects.
• Maintains client state and reconstructs the internal state of OPC server after reconnection.
• Supports all flavors of OPC synchronous and asynchronous reads and writes, subscriptions, browsing, and property access.
• Multiple independent OPC server connections.
• Intelligent OPC Group parameter optimization.

Leaflet

An installation package that would contain QuickOPC-Web alone is in works. Until it is available, download QuickOPC 3.03 package for use of QuickOPC over the Web. You will also get older versions of QuickOPC.NET and QuickOPC-COM, but you can ignore those features or unselect them during setup.

The downloaded software runs with a trial license, and can be upgraded to full version by simply adding a commercial license, without reinstallation.