Possible display unit are handled differently for variables and outputs (and inputs)

[Christian Kral <dr.christian.kral@…>]

Please consider the following example, which is triggered by investigations related with ​https://github.com/modelica/Modelica/issues/2488:

package TestAngle
  block AngleBlock
    parameter Modelica.SIunits.Angle phi = 0.1 "Angle";
    extends Modelica.Blocks.Interfaces.SO(y(unit="rad"));
  equation
    y=phi;
  end AngleBlock;
  model TestAngleBlock
    AngleBlock angleBlock 
      annotation (Placement(transformation(extent={{-10,-10},{10,10}})));
  end TestAngleBlock;
  annotation (uses(Modelica(version="3.2.2")));
end TestAngle;

When simulating the example TestAngleBlock two variables can be plotted:

• angleBlock.phi: when plotted, displayUnit = "deg" but can be switched to "rad" as well
• angleBlock.: the only available displayUnit is "rad"

So when both variables are plotted, only one can be displayed in "deg". I think both variables should have the option to be shown in "deg".