Siemens SIMATIC PCS 7 Configuration Manual page 71

The station "CLIENT03" is identical to station "CLIENT02" in project "Comp_MP". In this case
the OS project "CL02" can be used as a basis for station "CLIENT03". The path to the target
OS computer is set on the station "CLIENT03".
Note
If the settings for a referenced OS client change in relation to the base client, a new base client
must be created. We do not recommend making changes on the OS client computer.
Compendium Part A - Configuration Guidelines (V8.2)
Configuration Manual, 08/2016, A5E38166869-AA
Creating and managing a PCS 7 project
5.5 Adding Additional Stations
71