A (Partial) Story of OPC URLs: Revision history

From OPC Labs Knowledge Base

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10 December 2025

  • curprev 15:1115:11, 10 December 2025‎ User talk contribs‎ 7,364 bytes +3,613‎ No edit summary
  • curprev 15:0915:09, 10 December 2025‎ User talk contribs‎ 3,751 bytes +1,582‎ No edit summary
  • curprev 15:0615:06, 10 December 2025‎ User talk contribs‎ 2,169 bytes +2,169‎ 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..."
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