Stateflow Charts

R2026b

Design modal logic in graphical form

Model systems with a finite number of states. Use states to graphically denote the modes of the system. Conditional transitions provide pathways between these modes. Control the behavior of your system through actions in states and on transitions.

Blocks

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Stateflow Blocks

	Chart	Implement control logic with finite state machine
	State Transition Table	Represent modal logic in tabular format
	Truth Table	Represent logical decision-making behavior with conditions, decisions, and actions

Functions

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Stateflow Functions

`sfnew`	Create Simulink model that contains an empty Stateflow block
`sflib`	Open Stateflow block library
`stateflow`	Open Stateflow template page
`sfopen`	Open Simulink model
`sfclose`	Close Stateflow chart
`sfsave`	Save Simulink model
`sfprint`	Export Stateflow chart images
`sfhelp`	Open Stateflow documentation in the system web browser
`sfdebugger`	Open Breakpoints and Watch window
`sfexplr`	Open Model Explorer
`sfpref`	Set preferences for Stateflow charts
`convertToChart`	Convert state transition table to Stateflow chart (Since R2023b)
`convertToSTT`	Convert Stateflow chart to state transition table (Since R2023b)
`disableInstrumentation`	Disable Stateflow animation and breakpoints (Since R2026a)

Objects

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Graphical Objects

`Annotation`	Descriptive text or image in chart
`Atomic Box`	Encapsulate functions in separate namespace
`Atomic Subchart`	Reusable, independent subcomponents in Stateflow chart
`Box`	Box that delineates areas of Stateflow chart
`Default Transition`	Transition with a destination but no source that specifies the initial substate to enter
`Entry Junction`	Entry junction that crosses state boundary of Stateflow chart
`Exit Junction`	Exit junction that crosses state boundary of Stateflow chart
`Graphical Function`	Graphical function that uses flow charts
`History Junction`	Junction that records and restores the previously active substate when a superstate is reentered
`Junction`	Decision points in Stateflow chart
`MATLAB Function`	MATLAB function in Stateflow chart
`Simulink Based State`	Simulink subsystem in Stateflow chart
`Simulink Function`	Simulink function subsystem in Stateflow chart
`State`	Operating mode in Stateflow chart
`Truth Table Function`	Truth table in Stateflow chart

Topics

Model a Finite State Machine

Represent event-driven reactive systems.
- Modeling Guidelines for Stateflow Charts
Overview of Stateflow Objects

Learn about states, transitions, and other objects that you can use in your Stateflow^® chart.
- Guidelines for Naming Stateflow Objects
- How Stateflow Objects Interact During Execution
Represent Operating Modes by Using States

Create states to describe the operating modes of a reactive system.
Transition Between Operating Modes

Use conditional transitions as pathways between states.
Resume Prior Substate Activity by Using History Junctions
Create history junctions that record the active substates of a state.
Create Entry and Exit Connections Across State Boundaries
Improve componentization by isolating the transition logic for entering and exiting states.