[Scilab-Dev] PID block (deriv block problem)

Samuel Gougeon sgougeon at free.fr
Sat Nov 2 00:07:13 CET 2019


You are probably facing the bug 13244 
<http://bugzilla.scilab.org/show_bug.cgi?id=13244>.
Please feel free to subscribe to its thread and post the xcos file of 
your example.

Samuel

Le 01/11/2019 à 23:25, popest a écrit :
> I have found this video describing different results from XCOS vs. 
> Simulink ( https://www.youtube.com/watch?v=uSWcjfjZU-Q ) I was 
> successful in the replication of this error. Here is xcos block 
> diagram (PID block coef. - P=10, I=0, D=6):
> [DIAGRAM Screenshot]
> Here is the result:
> [SCOPE Screenshot]
> close loop transfer function is: the correct step response from Maple is:
> [PLOT]
> Only the middle block connection (green plot) is providing the correct 
> result. I think that this is a bug. Am I right?
>
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