The OPC UA Reference Type IsInstalledOn is used to link the installed software package to the hardware hosting the software package. More specifically, the OPC UA Reference Type IsInstalledOn connects an OPC UA object of type ControlsSWType to an OPC UA object of type ControlsHWType.
The OPC UA Reference Type IsInstalledOn allows to connect to at most one OPC UA object of type ControlsHWType. The InverseName is Hosts.