This information is part of the Modelica Standard Library maintained by the Modelica Association.

This example is a simple test of a single multiplexer component with 2 inputs prescribed by sources, one select input, and one output. After simulation until 15 s plot Mux2x1.in0, Mux2x1.in1, Mux2x1.sel, and Mux2x1.out. Compare the output signal with the input signals. If the select signal changes, the output switches to the other input.