Festo CPX-FB32, Electronic Manual

Page: 81 / 136

3. D i agn o s i s
3 − 13
Fes to P . B E − C PX−FB 32 − E N en 0605N H
3.3 D ia g n o sis v ia status b its
S t a tu s b it s a r e i n t e r na l i n put s (1 i n put b yt e ) whi c h se rv e for
d i s pl a yi ng c o mm o n d i agn o s ti c messages ( g lo ba l f a ult
messages ).
Pl ease n o te
If s t a tu s b it s a r e to be tr ansm itt ed vi a a P oll ed " or
Ch ange of S t a t e " c o nnec tio n , you m u s t se t th e D IL
s wit c h es o n th e fi e l d b u s n o de acc or d i ng ly ( see T ab .1 / 2).
If a ll s t a tu s b it s s upply a 0 −s i gna l, n o f a ult will be r eg i s t e r ed .
Th e followi ng t ab l e s how s th e d i agn o s ti c i n for ma tio n wh en
th e r e i s a 1 −s i gna l :
B it D ia g n o stic in for mati o n
w it h 1− si g na l
D esc r i p ti o n
0 Fa ult a t v a lv e Mo d ul e typ e o n whi c h a
f a ult h as o cc urr ed
1 Fa ult a t output
f a ult h as o cc urr ed .
2 Fa ult a t i n put
3 Fa ult o n ana lo g u e m o d ul e/
t ec h n olo g y m o d ul e
4 Unde rvolt age
Typ e of f a ult
5 S hort c ir c uit / ov e rlo ad
6 C ab l e fr ac tur e
7 O th e r f a ult s
T ab .3 / 3 : O v e rvi e w of s t a tu s b it s
If v a riou s f a ult s o cc ur s i m ult ane ou s ly o n v a riou s typ es of
m o d ul es , th ese f a ult s cann ot be ass i gned vi a th e s t a tu s b it s .
Fa ult s can be c l ea rly de fi ned vi a th e I /O d i agn o s ti c i n t e rf ace
of b y d i agn o s i s vi a Eth e rN e t / I P access .
F urth e r i ns tru c tio ns o n th e fu nc tio n and c o n t en t of th e s t a tu s
b it s can be fou nd i n th e C PX s y s t em man u a l.