Using Simulink Clock as a Chart Transition Condition

After bringing in the clock I am using its value as a relational operand in a transition condition (t > x). Upon reaching the state with the outbound transition, the clock's value magically jumps from t < x to t > x which makes the condition always true. This is unexpected. I want it to monotonically increase (as usual) until the condition becomes true. How can I make the clock behave differently?

[Fangjun Jiang]

Not clear. Are you using a "Clock" block in Simulink and make it as an input to your Stateflow chart, or do you have a counter/timer within the chart?

Answer 1

[Chuck Rogal]

Sorry, I am bringing in the clock from a clock block and want to use its value in a transition condtion. The clock monotonically increases until it gets to the state with the transition and then it jumps so the condition is always true. I want it to continue to behave as a monotonicly increasing clock instead of jumping ahead.

[Fangjun Jiang]

It should not happen like that. Make a simple example showing the problem so you can be helped.

Answer 2

[Chuck Rogal]

I am workiing with matlab support and will post the solution. Thanks!

Answer 3

[Chuck Rogal]

No solution. That is how the clock in implemented.

Answer 4

[Vignesh]

Can you help us understand the usecase better? Most clock mechanisms could be implemented with absolute time temporal logic, to take transition after certain time interval.

https://www.mathworks.com/help/stateflow/ug/using-temporal-logic-in-state-actions-and-transitions.html