General
The examples are provided to cover wide range of tools and languages used in development of industrial applications.
The features decribed or used here are only available if you included "COM development" during the installation of Connectivity Software. If the features are missing, simply re-run the installation program, making sure that "COM development" is included in the selection made on the "Installation Dashboard" setup wizard page.
For OPC Unified Architecture, the examples show:
- reading and writing attributes of OPC nodes,
- working with multiple nodes/attributes at once,
- error handling,
- subscribing for monitored item changes, and managing subscriptions,
- discovering OPC servers,
- browsing for OPC nodes,
- processing events,
- user interface for browsing,
- and more.
For OPC Data Access, the examples show:
- reading and writing OPC items,
- working with multiple items at once,
- error handling,
- subscribing for item changes, and managing subscriptions,
- getting property values,
- browsing for OPC servers, branches and leaves, and properties,
- obtaining information about OPC servers,
- processing events,
- user interface for browsing,
- and more.
For OPC Alarms and Events, the examples show:
- subscribing to events,
- event filtering,
- error handling,
- subscribing for item changes, and managing subscriptions,
- browsing for OPC servers, areas and sources,
- querying for event categories, conditions and attributes,
- obtaining information about OPC servers,
- processing events,
- acknowledging conditions,
- refreshing event subscriptions,
- and more.
Contents
Following categories of COM examples are available , and corresponding shortcuts exist in the Start menu or the Launcher application:
See Also
Examples - OPC Client
Knowledge Base
QuickOPC