What is the best/most effective way to dynamically build a timed loop in LabView?

[DHagan]

I am relatively new to labview (not to code in general) and am looking for the "LabVIEW" way to dynamically build a timed loop. This is what I am trying to accomplish: I have several heaters controlled through labview using Labview's PID toolkit. This works great. I have no issues with DAQ in general. However, throughout an experiment, I want to change the set point of each heater. I could set this up fairly easily using either a timed loop or the wait vi if I knew exactly how many different set points there would be. If possible, I would like to be able to read in a config file that includes the different times and set points for all heaters and dynamically create a loop that can handle this. I have tried using the Elapsed Time vi with an array of time targets; however that didn't seem to work. Has anyone been able to do this? Does anyone know where I could learn about using LabView in this manner? All help is appreciated.

[Yamaeda]

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@DHagan wrote:
I am relatively new to labview (not to code in general) and am looking for the "LabVIEW" way to dynamically build a timed loop. This is what I am trying to accomplish: I have several heaters controlled through labview using Labview's PID toolkit. This works great. I have no issues with DAQ in general. However, throughout an experiment, I want to change the set point of each heater. I could set this up fairly easily using either a timed loop or the wait vi if I knew exactly how many different set points there would be. If possible, I would like to be able to read in a config file that includes the different times and set points for all heaters and dynamically create a loop that can handle this. I have tried using the Elapsed Time vi with an array of time targets; however that didn't seem to work. Has anyone been able to do this? Does anyone know where I could learn about using LabView in this manner? All help is appreciated.

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Write a tab-separated spreadsheet file makes it easy to use the write/read from spreadsheet files. Assuming you have a 2D-array of your times and set points it's just a question of setting up a for-loop going through the array row-by-row and extract the elements (expanded index array) to set your points and wait time.

/Y

[DHagan]

So I already have set up a 2D array to input the times in one column and values in another column. I am also able to read this in from a file if needed. My biggest concern is with actually being able to execute it properly.

As of now, I have a for loop that is executed n (length of the array) times; however, it seems that it is executed immideately even before any of the values change. I am using a timed loop method as seen in the attached image.