Historians: Write Metadata
This article describes a starter solution related to writing metadata to PI Asset Framework.
What Does This Article Cover?
When writing data to a historian, it might be necessary to create metadata. For example, an Intelligence Hub data pipeline solution can create an Asset in the AVEVA PI System Asset Framework. This article describes a starter solution for this scenario.
Design considerations
These considerations pertain to writing metadata to the AVEVA PI System Asset Framework.
- Use the Intelligence Hub PI Connection Asset Type Output. This Output provides the ability to create Asset Framework Assets, Asset Framework attributes, and PI Points, and update PI Point values.
- Asset hierarchy can be created and updated using the Path option and the Create radio button.
- An asset can be created or updated using the Asset Name option and the Create radio button.
- An asset can be created based on an existing Asset Framework template using the _model attribute to match an existing template name.
- Attributes that are not filtered out of the payload using the attribute filter will become attributes in the PI System.
- The syntax of the PI Point is determined by Intelligence Hub.
- Consider the Update Options and how the Data Archive should be updated for the respective use case.
- The duration to create a PI Point is longer than the duration to add a new value to the Data Archive, so consider this when creating PI Points.
Summary
Please utilize the considerations provided in this article as you implement an Intelligence Hub solution.