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There are some translations that need to take place between the components and these platforms have different capabilities that result in some limitations in how an Edge Gateway can be configured. For example, UDTs in Ignition support more data types that AWS IoT SiteWise does. As a result, use of data types in Ignition must be limited to those supported by AWS IoT SiteWise in order for data to properly show up and be updated in AWS SiteWise.

Mappings

Ignition and AWS IoT SiteWise use different terminology for similar contructs. Those definitions are below.

• An Ignition 'UDT Definition' is mapped to a SiteWise 'Asset Model'.
• An Ignition 'UDT Instance' is mapped to a SiteWise 'Asset'.
• Ignition 'UDT parameters' are mapped to 'SiteWise Attributes'.
• Ignition 'UDT member tags' are mapped to 'SiteWise Measurements'.
• Transform, Metric, and Hierarchy definitions in AWS SiteWise are not used by SSB.

Constraints and Limitations

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