String function

[lucianpetcu]

Hello!

I am new to the Labview and i try to reproduce a VI.

I am trying to find this function/block but i can't find it anywhere

Please help!

[Bob_Schor · Accepted solution]

That's a Feedback Node.  It is one of the more-confusing LabVIEW constructs for beginner.  Have you learned about While Loops and Shift Registers?  This code is equivalent to the following (which I, personally, find easier to understand, despite my experience with LabVIEW):

Feedback Node Equivalent Code

Bob Schor

[lucianpetcu]

About shift registers no.. when i insert it, the Feedback Node is not the same (pink) and i can't reproduce this VI. :(. Is the only block i have left.. i try to reproduce this picture for testing some serial communication between Arduino and Labview..

[lucianpetcu]

My VI with one piece left..I would be grateful for the help.

[GerdW · Accepted solution]

Hi Lucian,

the feedback node turns pink as soon as you wire a string to its input...

When you have problems with your VI you should attach it!

[lucianpetcu]

Yes! Thank you very much for your time!

[billko]

I also have trouble with feedback nodes.  By ruthlessly applying the principles of dataflow, I can figure it out, but to me it's a lot easier just to follow the shift register around.