While Loop Problem

[Michael0615]

I have a problem related to the while loop of LabVIEW. When the loop termination condition is satisfied, there is an extra iteration performed in the loop. And the final result obtained from the loop is achieved in the extra iteration. The following is the block diagram of my code. Can anyone help me with this? Thanks a lot.

[tstahl]

The iteration counter of the while loop is zero indexed, so it starts at 0 and not 1.  I expect this is the source of your problem.

[Michael0615]

Thanks for your comments! But it is not the problem since my loop is expected to stop within the maximum number of iterations. As a result, it is not that relevant to the iteration counter of the while loop.

[tstahl]

To verify... if you put a number of iterations of 1, this while loop will execute two times the way it is written.  This is what you want?

Tim

[Michael0615]

Hello Tim,

That is not exactly what I meant. What my problem is that when the termination condition of my loop is satisfied, there is an extra iteration taken place in the loop, and then the whole loop stops.

[tstahl]

I think you're describing the proper operation of the while loop.  The condition is checked after the loop has executed.

[Michael0615]

Yes, that is the point. At the moment, I have already fixed the problem. Thanks a lot.