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In For Loops and While Loops, transfers values from one loop iteration to the next.

![]() | Note You can place a Feedback Node only in a For Loop or While Loop. |
The node appears automatically in the loop whenever you wire the output of a subVI, function, or group of subVIs or functions to the input of that same VI, function or group. You can replace the Feedback Node with a shift register or replace shift registers with a Feedback Node.
Refer to the Feedback Node - Build Array VI in the labview\examples\general\structs.llb for an example of using the Feedback Node.