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Attributes for Tag Data

In the FAI, an attribute held tolerances. An attribute can also have data sources: for each asset, the tag that holds that attribute's value. A check item asks for Flow Rate, and Kanoa uses the check's asset to find the right tag. One check sheet design can then serve every spray line, and the people building check sheets don't need to know tag paths.

By convention, quality data source tags go in a qds folder under the asset's folder in the Kanoa tag provider. The data source tag browser opens in the asset's folder, so they're easy to find.

Spray Line 1 quality tags

sprayLine1QDSTags.json: a qds folder with simulated thickness, flowRate and lineSpeed tags for Spray Line 1.

Prepare Spray Line 1
  1. Navigate to Configuration → Ops → Assets, select CoreForge\Philadelphia\Coating\Spray Line 1, select Enable Quality Triggers, and save.
  2. In Ignition Designer, in the Kanoa tag provider, select the CoreForge/Philadelphia/Coating/Spray Line 1 folder and import sprayLine1QDSTags.json. The file creates the qds folder, so don't create it first.
  3. Confirm the three tags under qds are changing.
Create the Coating attributes
  1. Navigate to Configuration → Quality → Attributes and create a Coating folder under CoreForge.
  2. Inside it, create the attributes Thickness, Flow Rate and Line Speed.
  3. Open Flow Rate, go to its Data Source tab, and add a data source: asset Spray Line 1, tag qds/flowRate, enabled. Save.
  4. Do the same for Thickness (qds/thickness) and Line Speed (qds/lineSpeed).

To use the same attributes on Spray Line 2, you'd add a second data source to each one pointing at Spray Line 2's qds tags. The check sheet wouldn't change.

Reference Materials: Attribute Data Sources

Data Sources​

If the value for the attribute can be pulled directly from an asset, configure the Data Source settings. To add a new data source, click the

Add Data Source button on the left.
Use the Asset Selector and Tag Browser to select the tag. Scale Factor and Ignore zero values parameters are specific to tag collector values, scaling the PLC value and preventing the storage of zero values if not required. Use the Enabled checkbox to enable or disable a data source.

Attributes

From Attributes › Data Sources →

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