Problem with PID VI

[dridri]

I'm using LABVIEW FDS 6.1 with PID Toolkit
I use Setpoint Profile VI and PID VI.
I try to use it in simulation ie output comes back to input but it doesn't work.
For example, with a set point of 50% output stay still to a level of 25% with the PV following this value.

What could be the origin of this problem?

Does anyone succeed in working perfectly with PID VI from NI?
Advices are welcome

Thanks by advance

Sylvain

[michaelk]

Hi Sylvian

I do not know what you have done (since no VI attachment was made), but I have attached a VI that maybe does what you want.
It is not so interesting since there is no real feedback. Also you can see that the output actually changes.

Good luck

M ;o)