Hierarchy in TIA Portal
TIA Portal works by using a parent/child hierarchy, where parent objects call child objects that they depend on to function correctly. The following is an example of a parent/child hierarchy:
Figure 2.9 – Example of a parent/child hierarchy within the example project
The preceding diagram shows how the Pole_Lights function block is dependent on Pole_Light_Manager. If Pole_Light_Manager is modified, then the Pole_Lights function block would also need to be modified to utilize the new version. This is because the interface of the Pole_Lights function block would need to change its size to accommodate any new data that's added to Pole_Light_Manager.
This example also shows that input mapping and output mapping do not have any dependents, so they do not rely on any other function blocks or functions to process their logic.
Call structure
In TIA Portal, a view window can be opened that displays the call structure. This...
