Festo CPX-2AA-U-I, Электронное руководство

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3. An al ogu e i npu t modu le CPX− 4AE −I
3−26
F est o P. BE −CPX− A X− E N e n 0503 b
M od u l e p a r amete r s : For ce c h anne l x
Func ti on no . Acc ess t o t h ese modu le p a r a m ete r s is m a d e v ia pro t oco l−s p e c ifi c f unc ti on s
(see t h e m a nu al f or t h e fiel d bu s nod e).
Des cr i p ti on Th e Forc e f unc ti on p e rm its t h e m a n i pu lati on o f a n al ogu e v al u es i rr es p e c ti v e o f
t h e a c t u al i npu t v al u e (see als o CPX s y ste m m a nu al). Th is c a n b e a ccomp lis h e d
w it h t h e f o ll ow i ng p a r a m ete r s:
Forc e mod e i npu ts ch a nn el x
Forc e state i npu ts ch a nn el x
Val u es Forc e mod e i npu ts ch a nn el x 0 = b l ock e d ( pr esetti ng )
1 = Forc e state
Forc e state i npu ts ch a nn el x 0 = r eset v al u e ( pr esetti ng )
1 = set v al u e
Re m a rk Th e e n a b li ng o f t h e Forc e f unc ti on w it h t h e p a r a m ete r Forc e mod e ou t pu ts
ch a nn el x" d e p e nd s on t h e fiel d bu s pro t oco l a nd is a ccomp lis h e d :
by a n i nd i v i du al p a r a m ete r setti ng or b it (e. g . CPX− FB 11),
by setti ng all p a r a m ete r b its o f t h e r ele v a n t word (e. g . CPX− FB 6) t o b l ock e d"
or Forc e state " .
For p a r a m et r izi ng t h e Forc e state, t h e d esi r e d i npu t word mu st b e corr es pon
d i ng l y m a pp e d i n t h e p a r a m ete r b its Forc e state i npu ts ch a nn el x" .
Th e e n a b li ng o f t h e Forc e f unc ti on f or t h e comp lete CPX te rm i n al is m a d e by
m ea n s o f t h e s y ste m p a r a m ete r Forc e mod e " (see CPX s y ste m m a nu al).
T a b .3 / 17: Forc e ch a nn el x ( ch a nn el−s p e c ifi c )