OPCUA | Create event from Data node

Forum|Forum|1 year ago
March 26, 2025
3 replies
71 views

How can we configure the OPCUA data node (in string) as event in Cognite instead of timeseries (by default)?
P.S. The existing OPCUA Server does not support to configure it as Event.

OPC-UA Extractor

Best answer by Einar Omang

This is possible with the extractor as-is. You can define a transformation using `extraction.transformations` see docs. You would create a filter that matches the nodes you want to ingest as events, then set the transform type to AsEvents

E

Einar OmangAnswer

Practitioner ⭐️⭐️⭐️

This is possible with the extractor as-is. You can define a transformation using `extraction.transformations` see docs. You would create a filter that matches the nodes you want to ingest as events, then set the transform type to AsEvents

L

Lok Mun SohAuthor

Seasoned ⭐️

This is possible with the extractor as-is. You can define a transformation using `extraction.transformations` see docs. You would create a filter that matches the nodes you want to ingest as events, then set the transform type to AsEvents

Thanks for the great hint.
Manage to create the events through transformation from the data nodes.
================================
transformations:
- type: 'AsEvents'
filter:
name: 'Message'
node-class: 'Variable'
================================
1) How do we assign the “Type” as it was showing as empty? Not sure if my configuration is correct.as above/
2) How do we associate asset to the event or timeseries?
3) Would be interesting to be able to create metadata on the event based from the value.

E

Einar Omang

Practitioner ⭐️⭐️⭐️

The config looks fine. There is no way to do any more advanced transformations to the generated event at the moment.

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