Rockwell Automation 1797-XXX FLEX Ex System Certification Reference Manual - Manual (Page 34)

Publication 1797-6.5.6 - June 2005
2-2 ControlNet Ex System
ControlNet Ex System
Diagram
1
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.
Safe Area
CNet
Ex
trk trm
30
670
-M
C
ont
rol
N
et
Ex
tap
The
Coax
T
runk
Cable
is
per
mit
ted t
o h
av
e a
max
imu
m len
gt
h of
1,
000m
wit
h o
nly
2 c
on
nec
te
d
Cont
ro
lNet
E
x T
ap
s dr
opp
ing t
o onl
y 250
m wit
h t
he max
im
um allo
wed
c
on
nec
te
d Cont
ro
lNet E
x
Taps
of
4
8.
Hazardous Area
Zo
ne
0
The
Cont
ro
lNet
Ex
Sy
st
em
is
an
int
ri
ns
ica
lly
s
afe
s
ys
tem a
cc
or
din
g t
o EN 5
0039
. Whe
n ins
tallin
g t
he
sy
st
em
, t
he
ce
rt
if
ica
te
of
c
onf
or
mit
y a
nd t
he
nat
ion
al in
st
all
ati
on r
egu
lat
ion
s m
us
t b
e he
ede
d. Th
e
co
mpo
nent
s of
t
he Con
tr
olNet
Ex
s
ys
te
m
and
th
e int
er
conne
ct
ion
s
are
s
hown
on
th
e ins
talla
tio
n
dr
awin
g (A-
B
Pu
b. 17
97-
6.5
.6).
fib
er
C
i <
60
pF
Con
tro
lNet E
x
ta
p
Cont
ro
lN
et
Ex
ta
p
C
on
tro
lNet E
x ta
p
CNet
Ex
tap
trm
Ci
<
68
pF
Li
ne
gl.
ChB
ChA
U
o=5
.4V
,
Io
=16
0m
A,
F -3
>500
kHz
Po
we
r S
up
pl
y U
i=9
.5
V,
Ii=1
A
,
Ci<
12
0n
F,
Li=n
egl
igib
le
coax tr
unk cable
Ch1
The
amb
ient
t
empe
ra
tu
re
ra
nge
of
the
Cont
ro
lNet
Ex
s
ys
tem is
-
20
to
+70
o
C.
Nod
e
4
... 48
Flexbus Uo
=5
.4
V,
Io=
400
mA
,
Po
=2.
16W
,
Co
=6
5
µ
F,
Lo=1
0 µ
H
Fo
r th
e t
ra
ns
m
it
ta
l bet
we
en t
he
sa
fe
ar
ea a
nd t
he
haza
rd
ous
ar
ea
only
op
tic
al
glas
s-
fi
be
rs
ar
e
pe
rm
itt
ed
. The
dia
m
et
er
of
a s
ing
le gl
as
s-
fi
ber
mu
st
be
>6u
m. Th
e
po
w
er
de
ns
ity
of
t
he
tr
ans
mi
tt
er
di
ode mus
t be
<5
mW/m
m
2
.
Pr
ot
ec
t t
he s
ys
te
m
aga
ins
t e
lec
tr
os
ta
ti
c
cha
rg
e. P
os
t a
si
gn n
ear
th
e ma
in c
om
pone
nt
s o
f
the
s
ys
tem:
A
tt
ent
io
n! A
voi
d ele
ct
ro
st
at
ic
c
har
ge
.
1797
-ACN
R1
5/* or
RS
D-GW
-Ex2.CN
Uo
=5
.4
V,
Io
=1
60m
A
,
F -3
>5
00kH
z
75 Ohm
1W
Ci
ne
gl.
Li n
egl
.
ChB
ChA
U
o=5
.4V
,
Io
=16
0m
A,
F -3
>500
kHz
Po
we
r S
upp
ly
Ui
=9
.5
V,
Ii=1
A
,
Ci<
120n
F,
Li=n
egl
igib
le
Nod
e
3
Fl
exbu
s
Uo
=5
.4V
,
Io
=4
00m
A
,
Po=
2.1
6W
,
Co=
65
µ
F,
Lo
=10
µ
H
1797
-ACN
R15/* or
RSD-
GW
-Ex2.CN
Uo
=5
.4
V,
Io
=1
60m
A
,
F -3
>5
00kH
z
Near
t
he
main
c
ompo
nen
ts
of
t
he
sy
st
em
a
pla
te
wit
h t
he
sy
st
em
m
ar
kin
g mu
st
b
e at
ta
ched
. If
the s
ys
te
m
is
ins
ta
lled
in a
ca
bine
t t
he
plat
e m
us
t b
e f
ix
ed o
n t
he in
si
de o
f t
he
ca
bine
t d
oor
.
*RG
6-
C
Net
is
def
in
ed
as:
C
ab
le
Imp
ed
ance
= 7
5 O
hm
+
or
-
3
Ohm
Cab
le Capa
cit
ance
<
5.
94n
F pe
r
100
m
Cab
le
Resist
ance
>9
.08
Oh
m
per
1
00m
Cab
le
At
tenu
at
io
n (-
20
t
o +
70
o
C)
0.2M
H
z >
0
.93
dB
/1
00
m
5M
H
z >
1
.39
dB/1
00m
0
.5MH
z >
0.9
5dB/
100
m
1
0M
H
z >
1.8
6dB/
100
m
1
M
Hz
> 1
.07
dB/1
00m
2
0MH
z >
2.7
3dB/
100
m
2M
H
z >
1
.16
dB/1
00m
50M
H
z >
4
.33
dB/1
00m
co
ax t
runk ca
ble
Ca
ble
t
ype
118
9A
, 30
92A
, o
r
30
92
A B
lu
e fr
om
m
an
uf
ac
tur
er
Bel
den
Wir
e or
t
ype
RG6
-CNe
t*
Li
<
56
0n
H
Li <
11
00u
H
Li <
110
0uH
Nod
e
1
Hazardo
u
s Are
a
Zo
ne
1
1797-RP
A/* or
RSD-C
FA
-Ex.
CN
N
ode
2
1797-RPFM/* or
RS
D-FC-Ex2.C
N 3
km
17
97-RPFM/
* o
r
R
S
D-FC-Ex2.
C
N 3km
fi
ber Ch0
fi
ber Ch1
fi
be
r
Ch0
Uo
=5.
4V
,
Io=
201
mA
,
F -3
>5
00kH
z
Po
we
r Supp
ly Ui=
9.5
V,
Ii=1A
,
Ci<
120
nF
,
Li
=ne
glig
ibl
e
CNe
t
179
7-BCNR or
RS
-F
B-E
x2.C
N