The OPC UA FX Information Model is identified by the following NamespaceURIs:

depending on whether it is common data, AutomationComponent, or ConnectionManager-related.

Online documentation for the NamespaceUris can be found as follows

The NodeSets associated with this version of specification can be found here:

https://reference.opcfoundation.org/nodesets/?u=http://opcfoundation.org/UA/FX/Data/&v=1.00.02&i=1

https://reference.opcfoundation.org/nodesets/?u=http://opcfoundation.org/UA/FX/AC/&v=1.00.02&i=1

https://reference.opcfoundation.org/nodesets/?u=http://opcfoundation.org/UA/FX/CM/&v=1.00.02&i=1

The NodeSets associated with the latest version of the specification can be found here:

https://reference.opcfoundation.org/nodesets/?u=http://opcfoundation.org/UA/FX/Data/&i=1

https://reference.opcfoundation.org/nodesets/?u=http://opcfoundation.org/UA/FX/AC/&i=1

https://reference.opcfoundation.org/nodesets/?u=http://opcfoundation.org/UA/FX/CM/&i=1

Supplementary files for the OPC UA FX Information Model can be found here:

https://reference.opcfoundation.org/nodesets/?u=http://opcfoundation.org/UA/FX/Data/&v=1.00.02&i=2

https://reference.opcfoundation.org/nodesets/?u=http://opcfoundation.org/UA/FX/AC/&v=1.00.02&i=2

https://reference.opcfoundation.org/nodesets/?u=http://opcfoundation.org/UA/FX/CM/&v=1.00.02&i=2

The files associated with the latest version of the specification can be found here:

https://reference.opcfoundation.org/nodesets/?u=http://opcfoundation.org/UA/FX/Data/&i=2

https://reference.opcfoundation.org/nodesets/?u=http://opcfoundation.org/UA/FX/AC/&i=2

https://reference.opcfoundation.org/nodesets/?u=http://opcfoundation.org/UA/FX/CM/&i=2