Labview vi that takes data and populates a list/array

Question

Hello everyone, I was assigned to create a device that acquires voltages. I found a Data Acquisition box that does just that (not from NI, so I had to use activeX).
Although I am only electrical, and don't have too much experience with programming, I tried a VI that could capture this data.
The following is something that works but does not do exactly what I need. It only acquires the data for a specific channel selected manually using a numeric control and displays it on "data" digital indicator. What I have been trying to do is do the channel change automatically, starting from channel 0 to 6 (increment by 1), and each time populating some kind of array or list with this value until all 7 readings are taken. I tried For Loop, which seems easier to use, with a zero as a starting constant, but as hard as I try, it won't work. I would appreciate any help on the matter.

Answer 1

joshorola wrote:
Hello everyone, I was assigned to create a device that acquires voltages. I found a Data Acquisition box that does just that (not from NI, so I had to use activeX).
Although I am only electrical, and don't have too much experience with programming, I tried a VI that could capture this data.
The following is something that works but does not do exactly what I need. It only acquires the data for a specific channel selected manually using a numeric control and displays it on "data" digital indicator. What I have been trying to do is do the channel change automatically, starting from channel 0 to 6 (increment by 1), and each time populating some kind of array or list with this value until all 7 readings are taken. I tried For Loop, which seems easier to use, with a zero as a starting constant, but as hard as I try, it won't work. I would appreciate any help on the matter.
Your image is pretty useless, because we cannot see most of the code (It is hidden in other frames of the stacked sequence structure!) The use of stacked sequences typically is discouraged. Don't use them!
Also your while loop is unecessary, because it only iterates once. If you would remove the while loop, nothing would change.
Since you know the number of channels (and thus iterations) before the loop starts, a FOR loop is correct. We cannot tell what you did wrong unless you show us what you tried.
Please attach your actual VI. Thanks
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