Timed State machine

[Lucky-Luka]

Hi all,

In this VI I have to insert the total time of my test, the time of a waiting time once the test is started and the time of the recording.

So if "total test time" = 35s, "Time to record" = 5s and "Time to wait" = 10s I want to see 2 whole cycles unless I press the reset button or stop button before 30s.

I cannot understand how I can STOP immediately in every state of the state machine.

Can anyone help me? Thanks

[GerdW]

Hi Luka,

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@Lucky-Luka wrote:

I cannot understand how I can STOP immediately in every state of the state machine.

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Comments:

• There should be no While loops inside the states. You already have a loop around the whole statemachine, that's all you need…
• The STOP button can be read in/before each case, there's no need for the event case in the IDLE state…
• Using the event structure is tricky, especially when you lock the frontpanel until events are handled…

[RTSLVU]

• Don't put a While loop around your timers.
  • Use "Time Has Elapsed" to go to the next state or stay in the timer state
• You really only need one timer or "wait" state 
  • Pass the time to wait to the timer state from the previous state
• Don't put an Event Structure inside a state. 
  • Use polling or events to read controls not both

[altenbach]

Maybe this can give you some ideas....