How can I write Log messages from FMU exported from MATLAB/Simulink

An FMU can issue log messages througt the fmiCallbackLogger member of the fmiCallbackFunction.

I have an FMU that is exported from Simulink (version 2024) that has a 'MATLAB Function' block that contains MATLAB code.

How can I write FMU log messages from the MATLAB code inside this block?

If I enable 'Debug Logging' in the fmpy.gui tool I can indeed see log messages coming from MATLAB :

CommunicationStepSize=0.2, LocalSolverStepSize=0.2
Local solver will do 1 steps from t = 0.2.
getReal vr:0, value:0.000000
getReal vr:1, value:0.000000
getReal vr:2, value:0.000000
getReal vr:3, value:0.000000
getReal vr:4, va lue:0.000000

But how do I add my own log messages?

Answer 1

[Yash]

Follow this issue thread which includes an implementation of custom FMU log messages, along with an example model and FMU to demonstrate this functionality: https://github.com/CATIA-Systems/FMIKit-Simulink/issues/92

[Nils Lande]

Thank you!

I read through the link, but I'm not sure how I can make that work with Simulink Compiler (Simulink 2024).