Labview 8.2 - Feedback function

[ff321]

I don't understand why the feed back function in Labview 8.2 is not working. I have a very simple problem! All I want to do is read incoming values and upon user's request (a TRUE or False) save one of the incoming values in a buffer for later use. I can do this in 8.5 but I am having problem with 8.2 version. Can you please help!!! It is really bugging me!

[altenbach]

We can only tell what you are doing wrong if you show us your code. 😄  (8.5 and 8.2 should be very similar).

[altenbach]

---

ff321 wrote:
I can do this in 8.5 but I am having problem with 8.2 version. Can you please help!!! It is really bugging me!

---

What kind of problems?

• incorrect result?
• broken wire?
• program crash?
• computer crash?

What is different between the 8.2 and 8.5 versions? In think in 8.2 a feedback node cannot stand alone, it needs to be in a loop. Place a one iteration while loop around it.

[Wiebe@CARYA]

I think the feedback node can only be used in loop structures in 8.2. Never
use them though, so I'm not sure.

This is because it is derived from a shift register, which only exist in
loops. Only later they realised the loops aren't needed, so in 8.5 you can
use them without loops.

Simply putting a while loop around your code, with the stop condition to
false, should do the trick.

Regards,

Wiebe.