The PADIM Information Model is identified by the following URI:

http://opcfoundation.org/UA/PADIM/

Documentation for the NamespaceUri can be found here.

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

https://reference.opcfoundation.org/nodesets/?u=http://opcfoundation.org/UA/PADIM/&v=1.01.0&i=1

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

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

Supplementary files for the PADIM Information Model can be found here:

https://reference.opcfoundation.org/nodesets/?u=http://opcfoundation.org/UA/PADIM/&v=1.01.0&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/PADIM/&i=2