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Hopsan / hopsan

Hopsan is a free multi-domain system simulation tool developed at the division of Fluid and mechatronic systems at Linköping university.
Apache License 2.0
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Failed to load .dll of generated FMU #2187

Closed till12mann closed 7 months ago

till12mann commented 7 months ago

I created an FMU using pythonfmu, but when I try to import it into Hopsan it says :

image

Any Ideas how I can fix that ?

robbr48 commented 7 months ago

I have never worked with pythonfmu, have you tried to validate the FMU using one of the tools listed here?

https://fmi-standard.org/validation/

If validation passes, can you attach the FMU so we can have a look at it? (or send it privately if it is confidential)

till12mann commented 7 months ago

@robbr48 I created a very simple one. Just two inputs and one output. If i check it with that tool it says :

ModelStructure/InitialUnknowns does not contain the expected set of variables. Expected {intOut} but was {}.

fmu2.zip

robbr48 commented 7 months ago

I tried to check the FMU using FMI Compliance Checker, and it says there is a dependency missing. According to dumpbin, the FMU requires python3.dll. Do you have Python 3 on system path? You could also try to manually copy python3.dll to the hopsan/bin folder.

till12mann commented 7 months ago

Alright, after manually copying the .dll file to the hopsan/bin folder, I can now simulate my model. Unfortunately, it's not doing the multiplication I intend to do. I also switched the multiplication into the do_step() but that didn't change anything. Where do I program the functionality of the FMU?