I am really confused with the 'If/else -> Action -> Merge' pattern in Simulink, especially when working with Bus Signals.
Say, I created a bus with two members, 'a' and 'b', both are scalars with initial value of 0. I want to repeatedly increase 'a' by 1 when it is less than 5, and otherwise do nothing.
I know I could have merged the member 'a' rather than the whole bus signal. It's just an over-simplified version of my real work, which does lots of stuff in the 'If Action Subsystem'.
I was gonna upload a .mdl file to demonstrate my question more clear. Then I found that there is no way to do that here. So, for short, my question is: how to merge bus signals?