The development of interoperable Express Interface (Xi / OPC .NET 3.0) client applications is greatly simplified. The PaXi classes handle the server access with detailed error checking.
All Xi methods can be called synchronously and asynchronously. The PaXi classes make async server access as simple as synchronous calls. However, async server access improves the behavior of user interface applications. The application is responsive even if a server access is slow as it may happen in server access through the Internet.
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