Mounting
An operator station has to display values of signals and attributes that reside in the volumes
of process stations. This is achieved by a mechanism where an operator station mounts the
volumes of the process stations in its own object tree. A mounting means that you hang an
object tree of another volume in the own root volume. Where in the tree the volumes are hung,
is configured with a MountObject object. The MountObject states which object in the other
volumes that is mounted. The result is, that the MountObject is displayed as the mounted object,
with the object tree beneath it. It apparently looks as if the objects belong to the own root
volume, while they in reality reside in another node.
If you use sub volumes, they also have to be mounted in a root volume to make the objects
available.
When you choose mounting points and names of mounting points, it is suitable to do this in such a
way that the objects have the same pathname in both volumes.