Stateflow

Defining Events

An event is a Stateflow object that triggers actions in a Stateflow machine or its environment. Stateflow defines a set of events that typically occur whenever a Stateflow machine executes (see Implicit Events). You can define other types of events that occur only during execution of a specific Stateflow machine or its environment.

This section contains the following topics:

• Adding Events to the Data Dictionary -- Tells you how to add events at any hierarchical object level within the Stateflow machine.
• Setting Event Properties -- Describes how to change the properties of an event in Stateflow.
• Defining Local Events -- Describes local events that are visible only to its parent object (for example, a state) and its children.
• Defining Input Events -- Describes input events that allow other Simulink blocks, including other Stateflow blocks, to notify a particular chart of events that occur outside it.
• Defining Output Events -- Describes output events that allow a chart to notify other blocks in a model of occurrences in that chart.
• Exporting Events -- Describes how to export events that enable external code to trigger events in the Stateflow machine.
• Importing Events -- Describes how to import events that allow a Stateflow machine built into a stand-alone or Real-Time Workshop target to trigger an event in external code.
• Specifying Trigger Types -- Describes the trigger type for a chart that defines how control signals trigger input and output events associated with the chart.
• Implicit Events -- Describes events that Stateflow triggers implicitly for actions such as entry in or exit from a state.

Defining Events and Data

Adding Events to the Data Dictionary