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Remove Automatic Feedback Node in LabVIEW or LabVIEW FPGA

Updated May 19, 2025

Reported In

Software

  • LabVIEW

Issue Details

  • When connecting two nodes inside a While Loop with a wire in LabVIEW a Feedback Node automatically appears: how is this possible and how can I remove it?
  • I am getting an automatic feedback node in my FPGA code which is causing a delay in my data acquisition. How can I remove this?
 


 

Solution

This is an expected behavior because of the linear data flow that LabVIEW follows.
A Feedback Node is automatically created, for instance, when connecting the output of a node with the input of another node which is supposed to execute first.


You can disable the automatic feedback node option by unchecking the "Auto-insert Feedback Node in Cycles" by following these steps:
 
  1. Open LabVIEW and select Tools >> Options
  2. Select Block Diagram from the Category list
  3. Uncheck the box next to Auto-insert Feedback Node in cycles

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