FMI2.xml

<?xml version="1.0" encoding="UTF-8"?>
<fmiModelDescription
  fmiVersion="2.0"
  modelName="BouncingBall"
  description="This model calculates the trajectory, over time, of a ball dropped from a height of 1 m."
  generationTool="Reference FMUs (development build)"
  guid="{1AE5E10D-9521-4DE3-80B9-D0EAAA7D5AF1}"
  numberOfEventIndicators="1">

  <ModelExchange
    modelIdentifier="BouncingBall"
    canNotUseMemoryManagementFunctions="true"
    canGetAndSetFMUstate="true"
    canSerializeFMUstate="true">
    <SourceFiles>
      <File name="all.c"/>
    </SourceFiles>
  </ModelExchange>

  <CoSimulation
    modelIdentifier="BouncingBall"
    canHandleVariableCommunicationStepSize="true"
    canNotUseMemoryManagementFunctions="true"
    canGetAndSetFMUstate="true"
    canSerializeFMUstate="true">
    <SourceFiles>
      <File name="all.c"/>
    </SourceFiles>
  </CoSimulation>

  <UnitDefinitions>
    <Unit name="m">
      <BaseUnit m="1"/>
    </Unit>
    <Unit name="m/s">
      <BaseUnit m="1" s="-1"/>
    </Unit>
    <Unit name="m/s2">
      <BaseUnit m="1" s="-2"/>
    </Unit>
  </UnitDefinitions>

  <TypeDefinitions>
    <SimpleType name="Position">
      <Real quantity="Position" unit="m"/>
    </SimpleType>
    <SimpleType name="Velocity">
      <Real quantity="Velocity" unit="m/s"/>
    </SimpleType>
    <SimpleType name="Acceleration">
      <Real quantity="Acceleration" unit="m/s2"/>
    </SimpleType>
  </TypeDefinitions>

  <LogCategories>
    <Category name="logEvents" description="Log events"/>
    <Category name="logStatusError" description="Log error messages"/>
  </LogCategories>

  <DefaultExperiment startTime="0" stopTime="3" stepSize="1e-2"/>

  <ModelVariables>
    <ScalarVariable name="time" valueReference="0" causality="independent" variability="continuous" description="Simulation time">
      <Real/>
    </ScalarVariable>
    <ScalarVariable name="h" valueReference="1" causality="output" variability="continuous" initial="exact" description="Position of the ball">
      <Real start="1" declaredType="Position"/>
    </ScalarVariable>
    <ScalarVariable name="der(h)" valueReference="2" causality="local" variability="continuous" initial="calculated" description="Derivative of h">
      <Real derivative="1" declaredType="Velocity"/>
    </ScalarVariable>
    <ScalarVariable name="v" valueReference="3" causality="output" variability="continuous" initial="exact" description="Velocity of the ball">
      <Real start="0" reinit="true" declaredType="Velocity"/>
    </ScalarVariable>
    <ScalarVariable name="der(v)" valueReference="4" causality="local" variability="continuous" initial="calculated" description="Derivative of v">
      <Real derivative="3" declaredType="Acceleration"/>
    </ScalarVariable>
    <ScalarVariable name="g" valueReference="5" causality="parameter" variability="fixed" initial="exact" description="Gravity acting on the ball">
      <Real start="-9.81" derivative="2" declaredType="Acceleration"/>
    </ScalarVariable>
    <ScalarVariable name="e" valueReference="6" causality="parameter" variability="tunable" initial="exact" description="Coefficient of restitution">
      <Real start="0.7" min="0.5" max="1"/>
    </ScalarVariable>
    <ScalarVariable name="v_min" valueReference="7" variability="constant" description="Velocity below which the ball stops bouncing">
      <Real start="0.1" declaredType="Velocity"/>
    </ScalarVariable>
  </ModelVariables>

  <ModelStructure>
    <Outputs>
      <Unknown index="2"/>
      <Unknown index="4"/>
    </Outputs>
    <Derivatives>
      <Unknown index="3"/>
      <Unknown index="5"/>
    </Derivatives>
    <InitialUnknowns>
      <Unknown index="3" dependencies="4" dependenciesKind="constant"/>
      <Unknown index="5" dependencies="6" dependenciesKind="constant"/>
    </InitialUnknowns>
  </ModelStructure>

</fmiModelDescription>