What is the difference between the Mux (Demux) and Bus Creator (Bus Selector) blocks in Simulink?

I would like to know the differences between using a mux signal and a bus signal.

Answer 1

[MathWorks Support Team]

Use Virtual Buses to group signals or messages together. They give you flexibility to group elements of different types and complexity, and let you access elements by name instead of by index. If you have strict code generation requirements for your composite signal, use Nonvirtual buses instead.

MathWorks recommends you use Mux only to group function-call signals.

For more information, see 

Explore Composite Interfaces - MATLAB & Simulink (mathworks.com)