model m_Test model m_Constant0 output Real y(quantity="Length", unit="m"); parameter Real v = 2; equation y = v; end m_Constant0; model m_Gain0 input Real u; output Real y; parameter Real k(quantity="Current", unit="A") = 2.5; equation y = k*u; end m_Gain0; m_Constant0 Constant0; m_Gain0 Gain0; equation Gain0.u = Constant0.y; annotation( experiment(StartTime = 0, StopTime = 1, Tolerance = 1e-06, Interval = 0.002)); end m_Test;