Simulating with a History Junction :: Controlling with Superstates (Stateflow User's Guide)

Stateflow User's Guide

Simulating with a History Junction

Observe the behavior of the substates of the superstate On during simulation of the Stateflow diagram in the SFcontrol6 model.

Start simulation.

When simulation starts, the first temp_event event updates the diagram and the state Off is entered.

When simulation starts, the first `temp_event` event updates the diagram and the state Off is entered.

Use the Manual Switch to send an on_switch event to the Controller block.


The `on_switch` event triggers the transition to On. Both On and its default state, Lo, become active.
The periodic event `temp_event` updates the diagram every second. Because the data `temp` is set to 130, the function `hot` returns a true and the transition from Lo to Hi is taken. State Hi becomes active.

Use the Manual Switch to send an off_switch event to the Controller block.

The off_switch event triggers a transition from On to Off. Off becomes active.
Use the Manual Switch to send an on_switch event to the Controller block.

The on_switch event triggers a transition from Off to On. This time, Hi is the active substate, and not Lo, the default substate.

The `off_switch` event triggers a transition from On to Off. Off becomes active.

The `on_switch` event triggers a transition from Off to On. This time, Hi is the active substate, and not Lo, the default substate.

Adding a History Junction to a Superstate Creating Subcharts to Add More Substates