encapsulated function step import Modelica_LinearSystems2; import Modelica_LinearSystems2.DiscreteTransferFunction; import Modelica_LinearSystems2.Utilities.Types.TimeResponse; input DiscreteTransferFunction dtf; input Real tSpan = 0 "Simulation time span [s]"; extends Modelica_LinearSystems2.Internal.PartialPlotFunction(defaultDiagram = Modelica_LinearSystems2.Internal.DefaultDiagramTimeResponse(heading = "Step response of dtf = " + String(dtf))); end step;