Local certificate file (.pem): Path to local certificate file.
Local private key file (.pem): Path to local private key file.
The client will try to load the server certificate from the endpoint if available. Manually copying the server certificate is also an option. Use a relative path and filename for the server certificate (must have a .pem extension).
Inject Node Usage
Inject your OPC UA address (NodeId) by the Topic of an Inject node or with the OpcUa-Item controlled by an Inject node.
Status Monitoring
The second output of the node provides status information:
I have rewrited OPC-UA Client description from ChatGPT. Would you consider to use it ?
Here's a revised and clearer version of the document, with added code examples for better understanding:
OpcUa-Client Guide
Connecting to an Endpoint
To connect to an OPC UA endpoint, use the following format:
Actions
Read
Reads the value of a node.
Write
Writes a value to a node.
Browse
Browses the address space.
Subscribe
Subscribes to changes of a node value.
Unsubscribe
Unsubscribes from a node.
Delete Subscription
Deletes a subscription.
Event
Subscribes to events.
Info
Reads attributes from a node.
Build
Constructs an Extension Object message.
Monitor
Monitors a node with additional parameters.
Read Multiple
Reads multiple nodes.
Write Multiple
Writes values to multiple nodes.
Register
Registers node IDs.
Unregister
Unregisters node IDs.
Acknowledge
Acknowledges an event/condition.
History
Reads historical values or aggregates.
Read File
Reads a file from the server.
Write File
Writes a file to the server.
Connect
Connects to the server.
Disconnect
Disconnects from the server.
Reconnect
Reconnects to the server.
Method
Calls a method on the server.
Server Certificate Options
The client will try to load the server certificate from the endpoint if available. Manually copying the server certificate is also an option. Use a relative path and filename for the server certificate (must have a .pem extension).
Inject Node Usage
Inject your OPC UA address (NodeId) by the Topic of an Inject node or with the OpcUa-Item controlled by an Inject node.
Status Monitoring
The second output of the node provides status information:
For more detailed examples, refer to the examples folder and the flow file
OPCUA-MULTI-SUB.json
.