An environment for developing an interactive structural diagram of an automated process control system?

Question

ACS

There is a complex integrated automated control system. About a hundred functional racks, about 40 km. cable.
There is a task to develop a detailed structural diagram of the system for staff training.
Requirements:

• good rich graphics
  
• interactivity - drop-down blocks with explanations or substructures
  
• accessibility of viewing for an inexperienced user
  
• viewing under Windows
  

The possibility of organizing a multi-level hierarchical structure is desirable . That is, the general structure, the detailed structure, the power structure, the division into rooms, and others.
The obvious solution is Adobe Flash.
Might be something else worth considering

Answer 1

Are the same Visio tools not enough?
There you can make interactive links between objects, sheets, etc.
Export the result to the same PDF ...

Answer 2

The best way to describe a control system is to use the tools to design it. For example - TRACE MODE