CygNet has its own read/write OPC DA server. The server responds to requests for real-time data using the OPC DA (OPC Data Access) specification, versions 1.0a, 2.0a, 2.05a, and 3.0.
Note: The CygNet OPC Server is an OPC DA server, although the name and user interface for the application use the label "CygNet OPC Server." For information on requesting archived data, see CygNet OPC HDA Server.
The CygNet OPC Server does not support browsing. The browser is an optional interface that was not implemented.
The server is typically installed on the client side. It uses CygNet messaging to retrieve data from the current value services.
The cycle rate of the CygNet OPC Server is twice that of the scan rate specified in the OPC client.
More:
Installing and Starting the CygNet OPC Server
Optional Site.Service Specifier in OPC Identifier
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