.ModelicaReference.Synchronous

Information

Synchronous language elements are added to Modelica as an alternative to normal when-clauses to making modeling of complex sampled systems safer and easier.

Examples

  // Discrete controller
  when Clock() then
    E*dc.xd=A*previous(dc.xd)+B*dc.yd;
      dc.ud=C*previous(dc.xd)+D*dc.yd;
  end when;

  // hold controller output:
  plant.u=hold(dc.ud);

  // Plant
  0=f(der(plant.x),plant.x,plant.u);
  plant.y=g(plant.x);

  // Sample continuous signal
  dc.yd=sample(plant.y, Clock(3));

Description