OPC Classic Client/Server Architecture

The following diagram illustrates the client / server architecture defined by the OPC Classic specification:

Note the following:

  • Multiple OPC Classic compliant client applications can communicate with an OPC Classic server simultaneously.

  • DCOM, client and server software programs can be configured to run on the same computer node or be distributed across a network of computers.

  • OPC Classic servers provide a common view of automation information managed by the system for which the server was written.

  • OPC Classic clients use this common view of automation information in a variety of ways. This includes providing:

    • Human machine interfaces

    • Historical data logging

    • Data mirroring services


Related topics:

  

CSense 2023- Last updated: June 24,2025