Is there a way to simplify this? applying functions to 16 channels - software trigger

Question

hey,
at first I want to appologize for hurting everybodies eyes.
Today I ended up with a pretty weird VI and I was wondering if there is any way to do this a littler easier.
Basicly I want to acquire 16 channels from a device. Unfortunately the device doesn't support analog trigger, so I had to create a software solution. So, I m reading 100 samples on all of the 16 channels in a while loop and compare the first channel, if its value reaches a certain threshold. If it does I end the while loop and enter a for loop, which read 100 samples 10 times. Before exiting the for loop I seperate the 16 channels - so I end up with 16 different arrays of 10 x 100 samples. Then I reshape the Array in order to get a one dimensional array with 1000 samples. At that point I have to do that for every channel seperately. After that I add the 100 samples which I acquired in the while loop in the beginning (which was the trigger) to the 1000 Samples Array. I end up with a array for every channel, which is 1100 samples long.
As you could see in the attached image, this looks pretty confusing in the end. Is there any way to make that easier and look nicer?
I know, I could add functions to reshape the arrays in order to end up with an 3 dimensional array (16 channels x 10 x 100 samples) then I could process everything in a for loop - but I guess that would take longer to calculate in the end?!? Any good ideas on that, except buying new hardware with a analog trigger?
Attachments:
weirdlabv.jpg ‏131 KB

Answer 1

as far as I know, my hardware only has memory for 4095 Samples -  when acquiring 16 channels at once, I am able to read chunks not bigger than 256. is this right?
I am not sure, if I still have some DDT in my latest vi left when converting the sample points as arrays of doubles. I will check that tomorrow, can't remember how I did that in the end. But everything seems to work finde so far. Thank you.
However, there are still some basic questions:
I have different parts in my vi, which relate to each other. For example, I have a array which is loaded from a file & edited by the user.  When finishing editing this array the user presses a button and continues with a different part of the vi, which uses the entered data. Therefore a part of the vi should not run before a other is finished. I used a combination of a event structure and a message queue. Is there a simpler way to realize such a construct?
Just was thinking about creating Sub-VIs - apparently I could get rid of the queues then.. will try that tomorrow..
If I create an empty array in order to enter values by the user during runtime, the array size increases at the moment I enter a value. In case I entered a value in the wrong field und want to deleted that value again and reset the arrays size to the size it had (before I entered the value)  - how do I do that? There is the right-click-option 'reset to default value', but this only sets the value to 0 in an numeric array, not deletes that field (row, whatever..)