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Monitor thermocouples separately using one DAQ

Hello!

 

So currently I am working on a temperature control program that monitors 4 thermocouples. Basically, when thermocouple 1(used to measure heater temperature) reaches 100 degree(threshold temp1), the power source for the heater will switch off. However, when the mean temperature of thermocouple 2 and 3(used to measure water) drops below 60(threshold temp2), the heater will on again. How do I differentiate it on labview? How do I tell the system which DAQ channel(connected to respective thermocouples) I want to do my temperature comparision with the threshold temperature?

 

Thank you for you help!

 

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Somewhat depends on your setup, but give Index Array a try.


GCentral
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If you have written some code, show us, it will help us see your intended structure.

Putnam
Certified LabVIEW Developer

Senior Test Engineer North Shore Technology, Inc.
Currently using LV 2012-LabVIEW 2018, RT8.5


LabVIEW Champion



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Hey! Thank you guys for the replies! Alright! here is my current VI!

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hmm hi @crossrulz thanks for the suggestion but how do I go about using Index Array in this case?

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Start by reading 4 channels from your DAQ.  I am not familiar with ULx, so you might want to go look through some examples from Measurement Computing on how you add more channels to your acquisition task.


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"Not that we are sufficient in ourselves to claim anything as coming from us, but our sufficiency is from God" - 2 Corinthians 3:5
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