how for loop terminates when auto indexed array is connected for loop index=0

[prashgn]

I have connected an array of 5 elements to an FOR loop with auto indexed enabled  (FOR loop index is not connected ) ,after 5 iteration ie 0-4 loop terminates automatically ..............HOW it gets terminated itself?

 I have attached the image for refrence

[Baji]

Hi,

Read the labview help to know more about auto index to an for loop

Enabling Auto-Indexing for Loops

If you wire an array to a For Loop or While Loop, you can read and process every element in that array by enabling auto-indexing. When you wire an array from an external node to an input tunnel on the loop border and enable auto-indexing on the input tunnel, elements of that array enter the loop one at a time, starting with the first element (if you are not wired your N terminal then your loop runs no of times of your array size thats what your lopp running for five times).

Complete the following steps to enable or disable auto-indexing for a tunnel on a loop.

1. Right-click the tunnel at the loop border.
2. Select Enable Indexing or Disable Indexing from the shortcut menu to enable or disable auto-indexing.

Message Edited by Baji on 03-24-2009 12:19 PM

Message Edited by Baji on 03-24-2009 12:23 PM

[jcarmody]

How many times do you want it to run?  (How would the For Loop know?)  If you want it to run indefinitely you should use a While Loop and index the array manually.

[prashgn]

what ever you said is true even i have checked that but in help file it doesn't say any thing about such (if you are not wired your N terminal then your loop runs no of times of your array size ). How to support it with out any refrence

[prashgn]

that's what my question is without connecting anything to "N" terminal of FOR loop it stops iterating moment the last element of array is encountered

[Baji · Accepted solution]

http://digital.ni.com/public.nsf/allkb/76895DA6D9BFE6B586256F7000745561

http://cnx.org/content/m12221/latest/

find the tutorial for How Does a For Loop Decide the Iteration Count When Multiple Auto-Indexed Input Arrays are Present?

Message Edited by Baji on 03-25-2009 02:11 PM

[Baji]

Hi,

Is your problem solved? If so please mark the post (Whichever you think is the best solution for your query). This will help others facing same problem and looking for a solution.

Thanks,