F
est
o C
PAS
C
−
D
P
0610NH
En
g
li
s
h
1
8
2.3 Pin allocation: Field bus connection
Sub−D socket
Pin allocation
1
:
Sc
r
ee
nin
g
/
s
hi
e
l
d
3: RxD/TxD
−P
4: C
N
TR
−P
, r
epeate
r
c
on
t
rol
s
i
g
n
a
l (TTL)
5: DG
N
D,
data
r
e
f
e
r
e
n
ce
p
o
te
n
t
i
a
l (M5V)
6
:
S
u
pp
ly vol
tage
p
o
s
i
t
iv
e
(
P
5V)
8: RxD/TxD
−N
H
ou
s
in
g
:
Sc
r
ee
nin
g
/
s
hi
e
l
d
2.4 LEDs
LED
Meaning
PS
P
ow
e
r
S
y
stem
":
P
ow
e
r
s
u
pp
ly for
t
h
e
e
l
ect
roni
cs
(
a
n
d
se
n
s
or
s
in
a
C
P
in
p
u
t
m
o
d
ul
e
)
P
L
P
ow
e
r Lo
ad
":
P
ow
e
r
s
u
pp
ly for
t
h
e
v
a
lv
es
(
a
n
d
v
a
lv
es
/ou
tp
u
ts
in
t
h
e
C
PI
e
x
te
n
s
ion
st
rin
g
)
S
F
C
PI
s
y
stem
f
a
ul
t
BF
Bu
s
f
a
ul
t
/
stat
u
s