MATLAB: Can’t I propagate the bus signals through a Switch block

Question

I have two bus signals, each created with a "Bus Creator" block. When setting up a "Switch" block to take in my bus signals, I get an error including:

 

===================== ERROR BELOW =====================

Cannot propagate bus signal from output port 1 of 'untitled/Bus Creator' to input port 1 of 'untitled/Switch'

Answer 1

"Switch" blocks support bus signals, however there is a limitation: Hierarchies and element names of both bus inputs must be identical.

https://www.mathworks.com/help/simulink/slref/switch.html#d120e218355

You have two options to resolve this error:

 

1. Rename the input signals to the "Bus Creator" block so that they match the Bus definition (you may have to do this for both "Bus Creator" blocks)

  2. Un-check the following "Bus Creator" block parameter ("checked" by default):  

  Un-checking the parameter will strictly enforce the output signal names to match the bus definition, regardless of the input signal names.