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Examples

getting_started

This example connects the output of one Constant component (value 3.0) with the input of an FMU component (gain.fmu), and runs the simulation sequentially from time 0.0 to time 1.0 with step size 0.001.

connections

The connections example contains 3 FMUS:

  • Sum 1 (vectorSum.fmu),
  • Sinus 1 (sinusGenerator.fmu), and
  • Gain 1 (gain.fmu).

The FMUs are connected via the following connections:

  • Sinus 1.sinus_out to Gain 1.real_in
  • Gain 1.real_out[1:3] to Sum 1.v_1[1:3}

Additionally, the (vector-)input Sum 1.v_2 has a default value 1.0 2.0 3.0, the step-size of Sinus 1 is set to 0.05, and the connection from Sinus 1.sinus_out to Gain 1.real_in is marked as DecoupleIfNeeded, telling OpenMCx to extrapolate this connection, if needed.

The DefaultExperiment is set up with an end time of 10.0.

parameters

The parameters example defines one FMU (sinusGenerator.fmu) with the parameters

  • sin.amplitude
  • sin.freqHz
  • sin.phase
  • sin.offset
  • sin.startTime It also sets the value of parameter sin.amplitude to 13.0. This is defined in ParameterBindings.

The DefaultExperiment is set up with an end time of 1.0.

units

The units example defines custom units in the Units section:

  • m as 1m
  • cm as 0.01m

The components in the model are:

  • Constant 1
  • FMU 1 (vectorSum.fmu)

The output Constant 1.Output has a value of 3.0m. This output is connected to all elements of the input vector Fmu 1.v_1[1:3], which is in cm. OpenMCx automatically converts between the units of the output the corresponding input.

The DefaultExperiment defines sequential calculation, and end time 0.02.

vector_ports

The vector_ports example contains one FMU (vectorSum.fmu). This FMU defines the vectors v_1 and v_2, with of 3 elements each, as inputs, and the vector b, with 3 elements, as its output. The output b is the element-wise addition of vectors v_1 and v_2.