OPC UA Client
Supported pipeline types:
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The origin can also browse all available nodes to provide the node details that you need to configure the origin.
When you configure the OPC UA Client origin, you specify connection information and tag information to associate with each client request. You select the processing mode for the origin and specify the NodeIds for the nodes you want to use. You can use one of several different methods to provide the NodeIds.
You can configure channel properties, such as the maximum chunk or message size. You can optionally configure the security policy that you want to use, related TLS properties, and an optional client private key alias.
Processing Mode
- Polling
- The origin polls the OPC UA server at regular user-defined intervals, returning the current status of every specified node.
- Subscribe
- The origin subscribes to the specified nodes. The OPC UA server sends an update each time a change occurs with one of the specified nodes. When node changes occur, the server sends each change to the origin separately.
- Browse nodes
- Browse nodes mode is a tool to aid pipeline development. In browse nodes mode, the origin connects to the OPC UA server to retrieve all available node details, such as the node identifier and namespace index.
Providing NodeIds
- Manual
- Manually enter the NodeId information. Use this method when you have a specific set and low volume of nodes that you want to use. You can use simple or bulk edit mode.
- File
- Provide a file of NodeId information. Use this method when you have a relatively static set of nodes that you want to use. You can update the file as needed, but will need to restart the pipeline to capture the latest nodes.
- Browse Nodes
- Specify a root NodeId, allowing the origin to browse for all available nodes under the root node. Use this method when you want to process data from a dynamic set of nodes that are under a single root node.
Security
- Basic128Rsa15
- Basic 256
- Basic256Sha256
- None
For more information about OPC UA security policies, see the OPC UA documentation.
When using a security policy, you must configure the associated TLS properties. When necessary, you can specify a private key alias.
Configuring an OPC UA Client Origin
Configure an OPC UA Client origin to process data from an OPC UA server.