Why can't I set the value for the model parameter "InvalidFcnCallConnMsg" in Simulink R2022b?

I have a model in Simulink R2019b migrated to R2022b, and I noticed that the command below no longer does anything. Consequently, the simulation ends with an error.

set_param(model, “InvalidFcnCallConnMsg”, ‘warning’)

How can I fix this issue?

Answer 1

[MathWorks Support Team]

Since R2020a, it is not possible to change the value for the parameter "InvalidFcnCallConnMsg." Its value is permanently set to 'error'. Therefore, Simulink will always issue an error diagnostic if the model presents invalid function call connections. That way, connections are ensured to be correctly set, preventing the model simulations from inaccurate results. This behavior change is documented in the release note as follows:

https://www.mathworks.com/help/releases/R2022b/simulink/release-notes.html#mw_ac2833ae-dc99-40ac-a0ab-2d81b5262a17

Please follow the directions in the error message and resolve the invalid function call connection. For instance, you can select the option for latching the input port for feedback signals. The following link below points to the documentation page to implement this suggestion.

https://www.mathworks.com/help/releases/R2022b/simulink/slref/inport.html#brqe18y-28