Our dOPC Client Toolkit for Delphi is probably one of the most used OPC component collections for Delphi worldwide. In addition, there are a number of good reasons why you should purchase our OPC Framework: dOPC main features: works with Delphi 6, 7
The XiSIM Express Interface (Xi, OPC .NET 3.0) server supports full Xi functionality (DA, AE, HDA). It has static and dynamic DA objects, generates AE events and has historical date defined in a text file database.
Easy to use Express Interface (Xi, OPC .NET 3.0) test client application for .NET3.5 and .NET4. The test client can access XI servers, OPC Classic DA/AE/HDA and OPC UA servers.