Inport Data Mapping Limitations
In Simulink® Real-Time™, you cannot:
- Create data at run time for each time step by using the input - u = UT(t)for MATLAB® functions or expressions.
- Import complex values and asynchronous function-call signals into top-level input ports. 
- Import signals of type - Stateflow.SimulationData.Stateinto top-level input ports.