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: