This function plots the root locus of model Modelica.Blocks.Examples.PID_Controller over the time constant Ti of the PID controller with a logarithmic gridding in Ti and a fixed value k=100 of the PID gain k (the menu on the right lower part is displayed when moving the cursor on one curve point; then all points belonging to the same parameter value are marked with a red square):
function rootLocusOfPIDDrive extends Modelica.Icons.Function; end rootLocusOfPIDDrive;