Using Simulink

Data Type Propagation

Whenever you start a simulation, enable display of port data types, or refresh the port data type display, Simulink performs a processing step called data type propagation. This step involves determining the types of signals whose type is not otherwise specified and checking the types of signals and input ports to ensure that they do not conflict. If type conflicts arise, Simulink displays an error dialog that specifies the signal and port whose data types conflict. Simulink also highlights the signal path that creates the type conflict.

Note    You can insert typecasting (data type conversion) blocks in your model to resolve type conflicts. See Typecasting Signals for more information.

Block Support for Data and Numeric Signal Types

Data Typing Rules