Rate-specific functionality for "System Update" Simulink block?

Hi all,

I am currently experimenting with the "System Update" Simulink block (see also: https://mathworks.com/help/rtw/ref/systemupdate.html). It provides the functionality to include custom code into your model.

So far, so good. However, I have a multi-rate model and I have several model entry functions for my model.

The current behaviour is: the code gets duplicated for every rate.

Is there a way to specify the sample rate the block should be used for (i.e. limit its scope)? Or is there a way to use a kind of macro to identify the sample rate the code is generated in (i.e. use an identifier and define custom behaviour in my code by using if/else if/else or switch/case)?

Kind regards,

Matthias