Hi,
In your code, once the Case is Started, the rest of the code won't run until the entire sequencer is completed.
Also, why do you need a Local Variable for Start and Boolean 2?
If you are trying to have a progress bar to indicate time lapsed for another process, you may try putting them in two parallel loops.
You may consider producer/consumer structure, master/slave structure etc.
One loop does the i.e. waveform generation process, while the other does the time lapsed computing as well as control the earlier loop.
