How do I create a periodic task (T = 30 mins) and still have the interface responsive?

Hi.
I created an application that drives a stepper following a certain rule every few minutes. The problem is I cannot stop the program before it finishes since the respective iteration still needs the delay to timeout.
I used two approaches, namely a "Wait" block  and a Timeout included in a case structure. Either way, I had to wait for the time interval to pass in order to press the "Stop" button.
Is there an easy way to fire a periodic task (or alarm)?
Thanks.
Solved!
Go to Solution.

Already tried it. I must have set the wrong paramaters because I never got it working. My stepper is suppose to finish doing its thing in max 15 secs. I suspect that I set the wrong interval in the block and mistakenly assumed that the secquence was never executed -> my mistake was that for testing purposes I set the Elapsed Time interval to 10-30 seconds to make the tests faster.
I'll post un update as soon as I'll test my code.
Thanks a lot.

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