Opened 6 years ago

Closed 6 years ago

#5219 closed defect (fixed)

Wrong outputs in modelDescription.xml

Reported by: lochel Owned by: lochel
Priority: blocker Milestone: 1.13.0
Component: FMI Version: v1.13.0-dev-nightly
Keywords: Cc: adrpo

Description (last modified by lochel)

FMUs generated from the attached Modelica model (which is using the PlanarMechanics library) contain 3 variables that are marked as output:

<!-- Index of variable = "14" -->
  <ScalarVariable
    name="der(speed)"
    valueReference="13"
    variability="continuous"
    causality="output"
    initial="exact">
    <Real start="0.0"/>
  </ScalarVariable>
  <!-- Index of variable = "401" -->
  <ScalarVariable
    name="position"
    valueReference="400"
    variability="continuous"
    causality="output"
    initial="exact">
    <Real start="0.0"/>
  </ScalarVariable>
  <!-- Index of variable = "420" -->
  <ScalarVariable
    name="speed"
    valueReference="419"
    variability="continuous"
    causality="output"
    initial="exact">
    <Real start="0.0"/>
  </ScalarVariable>

The Outputs section of the ModelStructure definition list only two of them:

      <Unknown index="401" dependencies="1" dependenciesKind="dependent" />
      <Unknown index="420" dependencies="2" dependenciesKind="dependent" />

The ModelStructure seem to be correct, but the entiremodelDescription.xml becomes invalid due to the previously defined third output.

Attachments (1)

issue_B.mo​ (2.9 KB) - added by lochel 6 years ago.

Download all attachments as: .zip

Change History (6)

Changed 6 years ago by lochel

comment:1 Changed 6 years ago by lochel

  • Description modified (diff)

comment:2 Changed 6 years ago by lochel

  • Owner set to lochel
  • Status changed from new to accepted

comment:3 Changed 6 years ago by lochel

The problem comes from the index reduction, which introduces dummy states derivatives and assigns the causality of the correspondent dummy state to it.

comment:4 Changed 6 years ago by lochel

The issue is addressed in ​OpenModelica/OMCompiler#2788.

comment:5 Changed 6 years ago by lochel

  • Resolution set to fixed
  • Status changed from accepted to closed
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