Hi,
Please check out this example and let me know if you have more questions.
Regarding sample time you still need to specify step time(base rate) of the model. You can assign that in the Fixed-step size (fundamental sample time) under solver setiings in the model configurations.
You should be able to set your Fixed-step size (fundamental sample time) to "auto" and the solver will determine the correct sample time for the model to run at based on the sample time settings you've chosen from the blocks in the model.
If you want to force the model to execute at a specific sample time, you can assign that in the Fixed-step size (fundamental sample time), you can do that too.
Regards,
Venkatesh C
