Network Router User Manual
EX500 Serial System EX## - OME0008
- 25 -
6. How to operate EX500 - GPR1 ( PROFIBUS-DP )
6 -1. Communication wiring
A twisted pair cable with shield is used in the
communication wiring of PROFIBUS- DP.
A maximum length of cable depend on
communication speed.
The specification of cable length is based on
TYPE A cable which has parameters shown below.
・
・・
・Terminating resistance
It is necessary to attach terminating
resistance to the units located at the
ends of transmission line.
Refer to section 6 -4 -2, for setting
the terminating resistance.
6 -2. Parts description
a. Fieldbus connector : Port for PLC connection.
b. Power supply connector : The power source for Input Unit, SI Unit, and control and
for the solenoid valve is connected through this port.
c. Communication port : Input Unit Manifold or the Manifold Valve with
the SI Unit is connected through this port.
d. LED display window : The state of the power source supply and the PLC
communication is displayed. ( Refer to section 6 -3 )
e. Station switch protection cover : Switches for the operation setting are inside.
( Refer to section 6 -4 )
The station switch protection cover should be tightened with specified tightening torque
after it is opened. ( Tightening torque : 0.6 N・m )
R
C
U
S
T
Y
P
E
1
E
X
5
0
0
-
G
P
R
1
V
O
L
T
A
G
E
2
4
V
D
C
/
2
0
0
m
A
I
N
P
U
T
/
O
U
T
P
U
T
6
4
/
6
4
I
P
C
O
D
E
I
P
6
5
S
E
R
I
A
L
N
O
.
M
A
D
E
I
N
J
A
P
A
N
C
O
M
D
2
4
V
D
C
D
I
A
B
F
S
O
L
R
U
N
P
E
E
X
5
0
0
S
E
R
I
E
S
G
A
T
E
W
A
Y
U
N
I
T
I
N
O
U
T
B
U
S
P
R
F
P
R
O
C
E
S
S
F
I
E
L
D
B
U
S
S
U
B
I
O
R
S
M
C
S
M
C
S
M
C
S
M
C
LED display window
Station switch protection cover
Communication port A
Communication port B
Communication port C
Communication port D
Power supply connector
Fieldbus connector
(PROFIBUS-DP)
Data Line
Data Line
390 ohms
220 ohms
390 ohms
VP
RxD/TxD-P
DGND
RxD/TxD-N
・
・・
・Cable specification
Impedance 135 ohms to 165 ohms
Capacitance between
conductors
30 pF / m or less
Conductor resistance 110 ohms / km
Cable diameter 0.64 mm
Conductor area 0.34 mm
2
or more
・
・・
・Communication speed and Longest wiring length
Communication
speed
9.6
[k bit/sec]
19.2
[k bit/sec]
93.75
[k bit/sec]
187.5
[k bit/sec]
500
[k bit/sec]
1.5
[M bit/sec]
12
[M bit/sec]
Wiring
length
1200
[m]
1000
[m]
400
[m]
200
[m]
100
[m]
！
！！
！ CAUTION