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OMEdit does not visualize a circuit. What is rong?

#4700  Permalink Top

OMEdit does not visualize a circuit. What is rong?

Jun-16-14 19:51:28

I often switch between Dymola and OM, and thus I often incur in compatibility issues.
I've the following code: a model "RL" that uses "myResistor" (both created using Dymola)
the circuit RL is not displayed well (with R20071).
Is there some error in the Modelica code?

Thanks.

Code:


model MyResistor "Ideal linear electrical resistor"

  parameter Modelica.SIunits.Resistance R(start=1) ;

  extends Modelica.Electrical.Analog.Interfaces.OnePort;

equation 

  v = R*i;

  annotation (uses(Modelica(version="3.2.1")), Icon(graphics={

        Rectangle(

          extent={{-70,32},{70,-28}},

          lineColor={0,0,255},

          fillColor={255,255,255},

          fillPattern=FillPattern.Solid),

        Line(points={{-90,0},{-70,0}}),

        Line(points={{70,0},{90,0}}),

        Text(

          extent={{-142,-48},{146,-88}},

          lineColor={0,0,0},

          textString="R=%R"),

        Text(

          extent={{-142,56},{142,100}},

          textString="%name",

          lineColor={0,0,255})}));

end MyResistor;



model RL

  Modelica.Electrical.Analog.Basic.Ground ground annotation (extent=[-10, -34; 10,

        -14], Placement(transformation(extent={{-10,-52},{10,-32}})));

  Modelica.Electrical.Analog.Basic.Inductor inductor(L=0.01)

    annotation (extent=[30, -10; 50, 10], rotation=-90);

  Modelica.Electrical.Analog.Sources.ConstantVoltage Vsource(V=10)

    annotation (extent=[-50, -10; -30, 10], rotation=-90);

  MyResistor Resistor(R=1) annotation (extent=[-10, 14; 10, 34], Placement(

        transformation(extent={{-10,10},{10,30}})));

equation 

  connect(inductor.n, Vsource.n) annotation (Line(

      points={{40,-10},{40,-20},{-40,-20},{-40,-10}},

      color={0,0,255},

      smooth=Smooth.None));

  connect(ground.p, Vsource.n) annotation (Line(

      points={{0,-32},{0,-20},{-40,-20},{-40,-10}},

      color={0,0,255},

      smooth=Smooth.None));

  connect(Resistor.n, inductor.p) annotation (Line(

      points={{10,20},{40,20},{40,10}},

      color={0,0,255},

      smooth=Smooth.None));

  connect(Resistor.p, Vsource.p) annotation (Line(

      points={{-10,20},{-40,20},{-40,10}},

      color={0,0,255},

      smooth=Smooth.None));

  annotation (

    uses(Modelica(version="3.2.1")),

    Diagram(coordinateSystem(preserveAspectRatio=false, extent={{-100,-100},{100,

            100}}), graphics),

    experiment(StopTime=0.1),

    __Dymola_experimentSetupOutput);

end RL;

#4701  Permalink Top

Re: OMEdit does not visualize a circuit. What is rong?

Jun-16-14 20:15:38

Have you noticed,

Code:

extent=[-10, -34; 10, -14]

in the RL model?

This is old Modelica syntax. OMEdit only supports 3.x annotation syntax.
Btw, Dymola does show the model fine but you can't really use it e.g try moving the inductor component.

Adeel.

#4702  Permalink Top

Re: OMEdit does not visualize a circuit. What is rong?

Jun-16-14 21:36:04

ah,
I really don't know how I could create this, given the programs (all very new) I use.
Now I've also checked Dymola in pedantic mode and it correctly complains about 'extent'.
Thanks.

MC

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