FMI3.xml

<?xml version="1.0" encoding="ISO-8859-1"?>
<fmiModelDescription
  fmiVersion="3.0-alpha.3"
  modelName="BouncingBall"
  description="This model calculates the trajectory, over time, of a ball dropped from a height of 1 m."
  instantiationToken="{8c4e810f-3df3-4a00-8276-176fa3c9f003}">

  <ModelExchange modelIdentifier="BouncingBall"/>

  <BasicCoSimulation modelIdentifier="BouncingBall"
    canHandleVariableCommunicationStepSize="true"
    providesIntermediateVariableAccess="true"
    canReturnEarlyAfterIntermediateUpdate="true"/>

  <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>
    <Float64 name="Position" quantity="Position" unit="m"/>
    <Float64 name="Velocity" quantity="Velocity" unit="m/s"/>
    <Float64 name="Acceleration" quantity="Acceleration" unit="m/s2"/>
  </TypeDefinitions>

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

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

  <ModelVariables>
    <Float64 name="h" valueReference="0" causality="output" variability="continuous" initial="exact" declaredType="Position" start="1" description="Position of the ball"/>
    <Float64 name="v" valueReference="1" causality="output" variability="continuous" initial="exact" declaredType="Velocity" start="0" derivative="0" reinit="true" description="Velocity of the ball"/>
    <Float64 name="g" valueReference="2" causality="parameter" variability="fixed" initial="exact" declaredType="Acceleration" start="-9.81" derivative="1" description="Gravity acting on the ball"/>
    <Float64 name="e" valueReference="3" causality="parameter" variability="tunable" initial="exact" start="0.7" min="0.5" max="1" description="Coefficient of restitution"/>
  </ModelVariables>

  <ModelStructure>
    <Output valueReference="0"/>
    <Output valueReference="1"/>
    <Derivative valueReference="1"/>
    <Derivative valueReference="2"/>
    <InitialUnknown valueReference="1"/>
    <InitialUnknown valueReference="2"/>
    <EventIndicator valueReference="1"/>
  </ModelStructure>

</fmiModelDescription>