duration

Time during which condition is valid

Syntax

duration(C)

duration(C) returns the number of seconds since the conditional expression C became true and the associated state became active.

Note

The temporal logic operator duration is not supported in standalone charts in MATLAB^®.

Transition out of the state when the variable x has been greater than or equal to 0 for longer than 0.1 seconds.

[duration(x>=0) > 0.1]

Stateflow chart that uses the duration operator in a transition.

Store the number of seconds since the variable x became greater than 5.

en,du:
   y = duration(x>5);

Stateflow chart that uses the duration operator in a state.

The Stateflow^® chart resets the value of the duration operator if the conditional expression C becomes false or if the associated state becomes inactive.
The duration operator does not support conditions that depend on local or output structures. For more information, see Access Bus Signals Through Stateflow Structures.