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Clarification of stepSize for CoSim FMUs #434

modelica-trac-importer opened this Issue Oct 17, 2018 · 1 comment


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modelica-trac-importer commented Oct 17, 2018

Reported by maplesoft on 1 Jun 2018 17:21 UTC
The meaning of stepSize, if provided in the DefaultExperiment field, needs to be clarified.
On pg. 43 of the spec it says:
"for CoSimulation the stepSize defines the preferred communicationStepSize"
but on pg. 96 it says:
"the smallest sample period as accessible by the outside of the FMU is defined by attribute stepSize in element DefaultExperiment"

So should the importing tool interpret it as a minimum or just a preferred step size? This is important especially when canHandleVariableCommunicationStepSize = false.



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modelica-trac-importer commented Oct 17, 2018

Comment by karl.wernersson on 26 Jun 2018 15:05 UTC
Remove in 3.0 , use clock if you want to define step size.

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