This block sets the Boolean output y to $\mathrm{true}$ when the Integer input u changes.

The output is $\mathrm{true}$ only for an instant, so a plot of it will always appear $\mathrm{false}$.

$y=\mathrm{change}\left(u\right)$

The component described in this topic is from the Modelica Standard Library. To view the original documentation, which includes author and copyright information, click here.