OPC Core Components Source Code 3.0
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OPC Core Components Source Code 3.0

OPC Foundation’s official reference implementation of the core infrastructure behind OPC Classic
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3.0.101 See all
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OPC Core Components Source Code is the OPC Foundation’s official reference implementation of the core infrastructure behind OPC Classic. Aimed at developers building or maintaining OPC Data Access (DA), Historical Data Access (HDA), and Alarms & Events (A&E) solutions on Windows, it provides the essential COM/DCOM building blocks required for interoperable OPC client and server applications.

Key features and contents:

  • Common OPC Classic COM interfaces, headers, and type libraries (DA, HDA, A&E)
  • Proxy/stub libraries for remote COM/DCOM marshalling
  • OPCEnum service for local and network discovery of OPC servers
  • Sample code and utilities to accelerate development and testing
  • 32-bit and 64-bit Windows support

Typical uses include developing new OPC Classic components, integrating with legacy SCADA/DCS systems, and supplying the runtime prerequisites many OPC Classic applications expect.

Notes:

  • Target platform: Windows with COM/DCOM. For modern, cross-platform communication, see the OPC UA stacks and SDKs.
  • Access and licensing terms may vary and are often tied to OPC Foundation membership; review the specific license for your use case.

OPC Core Components Source Code is developed by OPC Foundation. The most popular versions of this product among our users are: 2.0 and 3.0.

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