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These are not supported currently in Sparkplug SiteWise Bridge. AWS SiteWise allows Asset Models to have one or more child Asset Models. Ignition supports UDTs having children UDTs as well as UDTs referencing a parent UDT. However, these hierarchical relationships will not be maintained by SSB. Support for simple hierarchies as supported by AWS IoT SiteWise will be added in a future version of Sparkplug SiteWise Bridge.

AWS IoT SiteWise Limits and Quotas

AWS IoT SiteWise has limits and quotas on many different aspects of asset model counts, asset counts, number or attributes per model, etc. For details on those limits see this document.

MQTT Server

• AWS IoT Core has a maximum message size limited to 128 kiloBytes. This limitation can be overcome by using the Cirrus Link Chariot MQTT Server.
• AWS IoT Core does not support use of Sparkplug's 'Primary Host ID' feature. This limitation can be overcome by using the Cirrus Link Chariot MQTT Server.

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