Pulling in a variable into TestStand from an externally running LabView Vi ?

Hello,
My coworker has a problem and I'm tyring to help him.
We have a functional test written by an outside company, using TestStand 4.1
He has a LabView Vi with an Thermotron driver that monitors a chamber temp and outputs an INTERVAL number ( 1 intervel every x minutes)
That interval number is written to text file.
We would like to loop the Main function of the TestStand sequence based on that Interval number, but I'm unsure how to read that variable from within Test Stand.
I can either pull interval numbers from the text file, or set up logic in the VI to make a true / false flag based on interval numbers
i.e. interval 30 - 60 run the test....61 to 75 pause (dont run test)....76 to 125 run test...etc
Can you tell me how I might pull that interval into TestStand ?
Is there a way without incorporating the stand alone VI in question into the Test Seq ?
Thank you for any advice in advance !
Solved!
Go to Solution.

Hi,
Are you saying that you want to read this value stored in your text file and use this value to set the number if iteration of your test sequence loop.
You will need a piece of software that will obtain the value from your file and then pass this back into TestStand to store in a teststand variable, probably a local. TestStand doesn't have the built in function to directly read the data from your file.
Therefore you will need a code module attached to say an Action Step Type. The code module can be written in any one of the supported language, as you mentioned LabVIEW then maybe this is your perferred language. So your VI need to obtain the data from your file and return the value back to TestStand and you do this by sending your data out of your VI via its connector pane and then in teststand assigning a Teststand variable to your output connection of your VI.
I am assuming you have the basic knowledge of setting up a Step in TestStand.
Regards
Ray Farmer

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Solved!
Go to Solution.
Attachments:
TestStand_LoadError_Hover.png ‏16 KB

This fixed my issue as well. Thank you for posting this. I have repaired LabVIEW 2010 sp1, LabVIEW FPGA, LabVIEW RT, DAQmx, and VISA 5.0. These are not small programs to do repairs on. Even after doing all of these repairs I still had issues with just labview coming up.
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Attachments:
b.png ‏116 KB
a.png ‏46 KB

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CTestStandDialog1.zip ‏13 KB

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