The internal behavior of an AUTOSAR software component is implemented by a set of runnable entities (runnables). A runnable is a sequence of operations provided by the component that can be started by the AUTOSAR run-time environment. The component configures an event to activate each runnable – for example, a timing event, data received, a client request, a mode change, component startup or shutdown, or a trigger. Runnables can be interconnected using AUTOSAR inter-runnable variables (IRVs).

To configure an AUTOSAR runnable, create or identify a root-level Simulink^® subsystem or function that implements a sequence of operations. The subsystem or function must generate an entry-point function in C code. Then create an AUTOSAR runnable, and map the Simulink entry-point function to the AUTOSAR runnable. Use the AUTOSAR Dictionary and the Code Mappings editor or equivalent AUTOSAR property and map functions.

The steps to create an event that activates a runnable depend on the type of event. If the event relies on a communication interface, such as data received (sender-receiver) or client request (client-server), you must first configure the communication interface before configuring the event.