SMC Networks EX500 - Manual (Page 26)

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
US
TYP
E1
EX5
00-
GPR
1
VOL
TAG
E 2
4VD
C/2
00m
A
INP
UT/
OUT
PUT
6 4/6
4
IP COD
E
IP 65
SER
IAL
NO
. MAD
E IN
JA PAN
COM
D
24V
DC
DIA
BF
SOL
RUN
PE
EX5
00 S
ERIE
S
GAT
EW
AY U
NIT
IN
OUT
BUS
P R
F PR OC ESS FIE LD B US S U B
I
O
R
SMC SMC SMC SMC
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