Hi chrisR, thanks for your answer. the example with my modifications that i employed is attached, it have a buffer to generate the control signal, and the typical structure of a vi for generate a signal, the problem is that the generation begin only once and is holding, because generation is in continuous mode
Later, over this vi I introduced a while loop and I changed the continuous generation to finite but the signal is generated only once and the loop don't work, I don't understand why and I don't know where the while loop must be placed in order to restart the task.
How to restart the task?
this vi have too an analog and digital acquisition part, but it works without problems.
thaks for your support
grateful
Edolch