Switch block need help

Could anyone please describe this block for me and especially the control port I didn't understand it even after reading the help.

thx

[Geoff Hayes]

Adham - no block was included in your question.

[Adham]

The switch block in simulink : Simulink library browser then HDL Coder then Commonly used blocks then switch

Answer 1

[Christopher Berry]

Adham,

The documentation for this block is a bit confusing. Think of it as an if-else, which may make more sense if you have a computer science background.

Something like this:

if (cond == TRUE)
    output = u1 %Input port 1
else
    output = u3 %Input port 3
end

Where cond can be any of the following 3 choices:

1. cond = u2 >= Threshold
2. cond = u2 > Threshold
3. cond = u2 ~= 0

So the output of the block will be either input 1 or input 2 depending on the value of input 2, the type of condition selected and the value of threshold selected.

Hope that helps some!

Answer 2

[Adham]

Thanks, that was helpful