Creo Schematic must allow multiple drain wires/fibers (of type template_shield) to attach to a single cable decoration, the same as any other connection port.
A cable with multiple drain wires and shield cannot be represented in the schematic (ie "only one shield can be added to a cable at each level in the group hierarchy.") If the physical cable has more than one drain wire and an overall shield, an error will occur when attempting to extend a second Shield Fiber from the groupshape port (error "Port already connected to a shield.")
The help file confirms this limitation, explained below:
There are two types of shields:
Direct Link—The shield wire is a direct link between two connectors
Through drain wires—A standard wire from the cable decoration shield port is routed to the termination point to create a drain wire
Through drain wires—A standard wire from the cable decoration shield port is routed to the termination point to create a drain wireA shield must first exist at the artifact level of the cable, and the shield port must be placed, before it is connected to a cable. Draw the shield core in the catalog cable before instancing it or apply a dataset to the cable with a membermap that specifies a shield.
Only one shield can be added to a cable at each level in the group hierarchy. Use the Model Explorer to view the group hierarchy and to determine which cables have shields.
Shields can be applied in the following ways:
Not connected
nnected to back shell
Connected through connector
Connected to ground
Connected to daisy chain