The Robotics Information Model is identified by the following URI:
http://opcfoundation.org/UA/Robotics/
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/Robotics/&v=1.01.3&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/Robotics/&i=1
Supplementary files for the Robotics Information Model can be found here:
https://reference.opcfoundation.org/nodesets/?u=http://opcfoundation.org/UA/Robotics/&v=1.01.3&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/Robotics/&i=2