FMI3.xml

<?xml version="1.0" encoding="UTF-8"?>
<fmiModelDescription
  fmiVersion="3.0"
  modelName="StateSpace"
  description="This model implements a linear time-invariant (LTI) system"
  generationTool="Reference FMUs (development build)"
  instantiationToken="{D773325B-AB94-4630-BF85-643EB24FCB78}">

    <ModelExchange
      modelIdentifier="StateSpace"
      canGetAndSetFMUState="true"
      canSerializeFMUState="true"/>

    <CoSimulation
      modelIdentifier="StateSpace"
      canGetAndSetFMUState="true"
      canSerializeFMUState="true"
      canHandleVariableCommunicationStepSize="true"
      providesIntermediateUpdate="true"
      canReturnEarlyAfterIntermediateUpdate="true"
      fixedInternalStepSize="1"
      hasEventMode="true"/>

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

    <DefaultExperiment startTime="0" stopTime="10"/>

    <ModelVariables>
        <Float64 name="time" valueReference="0" causality="independent" variability="continuous" description="Simulation time"/>
        <UInt64 name="m" valueReference="1" description="Number of inputs" causality="structuralParameter" variability="tunable" start="3" min="0" max="5"/>
        <UInt64 name="n" valueReference="2" description="Number of states" causality="structuralParameter" variability="tunable" start="3" min="0" max="5"/>
        <UInt64 name="r" valueReference="3" description="Number of outputs" causality="structuralParameter" variability="tunable" start="3" min="0" max="5"/>
        <Float64 name="A" valueReference="4" description="Matrix coefficient A" causality="parameter" variability="tunable" start="1 0 0 0 1 0 0 0 1">
            <Dimension valueReference="2"/>
            <Dimension valueReference="2"/>
        </Float64>
        <Float64 name="B" valueReference="5" description="Matrix coefficient B" causality="parameter" variability="tunable" start="1 0 0 0 1 0 0 0 1">
            <Dimension valueReference="2"/>
            <Dimension valueReference="1"/>
        </Float64>
        <Float64 name="C" valueReference="6" description="Matrix coefficient C" causality="parameter" variability="tunable" start="1 0 0 0 1 0 0 0 1">
            <Dimension valueReference="3"/>
            <Dimension valueReference="2"/>
        </Float64>
        <Float64 name="D" valueReference="7" description="Matrix coefficient D" causality="parameter" variability="tunable" start="1 0 0 0 1 0 0 0 1">
            <Dimension valueReference="3"/>
            <Dimension valueReference="1"/>
        </Float64>
        <Float64 name="x0" valueReference="8" description="Initial state vector" causality="parameter" variability="tunable" start="0 0 0">
            <Dimension valueReference="2"/>
        </Float64>
        <Float64 name="u" valueReference="9" description="Input vector" causality="input" start="1 2 3">
            <Dimension valueReference="1"/>
        </Float64>
        <Float64 name="y" valueReference="10" description="Output vector" causality="output">
            <Dimension valueReference="3"/>
        </Float64>
        <Float64 name="x" valueReference="11" description="State vector" causality="local">
            <Dimension valueReference="2"/>
        </Float64>
        <Float64 name="der(x)" valueReference="12" description="Derivative of the state vector" causality="local" derivative="11">
            <Dimension valueReference="2"/>
        </Float64>
    </ModelVariables>

    <ModelStructure>
        <Output valueReference="10"/>
        <ContinuousStateDerivative valueReference="12"/>
        <InitialUnknown valueReference="10"/>
        <InitialUnknown valueReference="11"/>
        <InitialUnknown valueReference="12"/>
    </ModelStructure>

</fmiModelDescription>