Please check if it possible to clarify following points:
1- In which mode do you use FB41.Normally,P_SEL
is activated.What about I-SEL and D_SEL.If you do
not want to use them simply put "FALSE" operand
instead of input contacts.If you use inputs to select
or de-select I_Part and D_Part in operation,please
2-Why your "cycle" of FB41 does not match to the
real cycle of OB35(Normally T#100ms)?Why your
selected cycle is too long?
3-Provide us the archive of the project if possible and
a brief about handling algorithm based on your design.