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• 15:06, 10 December 2025 User talk contribs created page A (Partial) Story of OPC URLs (Created page with "Have you ever seen something like this, when connecting to an OPC server? opcda://TEST-OPC/Kepware.KEPServerEX.V5/{B3AF0BF6-4C0C-4804-A122-6F3B160F4397} It looks like an URL. But, is it an URL? In this case, you might guess that it refers to an OPC Data Access server, and that the TEST-OPC is the name of the computer, "KEPServerEX.V5" is the OPC server's ProgID, and {B3AF0BF6-4C0C-4804-A122-6F3B160F4397} is its CLSID. For OPC "Classic" servers, the OPC specification...")