The correct relationship is: Parent (Equipmentmodel) Automated by::Automates Child (OT Entity)
You could create this relationship manually, but you could also use the workspace "Manufacturing Process Manager". There you can add the OT assets. More informations you can find here.
Hint: The OT asset is only visible, when the Equ. Model and the OT entity are in the same side.
Hint 2: The creation of the relationship will also fill the related list "OT assets" from the Equ. model.
