- 29 -
No.JXC
※
-OMT0007-D
7. Details of DeviceNet Communication Plug
Wiring method of the special DeviceNet cable and the connection method of the DeviceNet
communication connector of the JXCD1 are shown below.
(1) Wiring of signal lines
Make sure to connect the signal lines to the assigned pins according to the figures shown below.
The communication connector for DeviceNet is suitable for using it with wire sizes from AWG24 to 12
(0.2 mm
2
to 2.5 mm
2
).
Tighten the wiring screws (M3 slotted head screws) firmly with a tightening torque of 0.5 to 0.6 Nm.
(2)
Wiring for communication
DeviceNet compliant twisted pair cables with shield (special communication cable for DeviceNet)
should be used for communication wiring. The maximum cable length depends on the transmission
speed and the cable type used.
● Transmission speed and maximum wiring length
Communication
distance
Communication
speed (DataRate)
Total main
cable length
Branch cable
length
Total branch
cable length
Thick
cable
500 kbps
100 m or less
6 m or less
39 m or less
250 kbps
250 m or less
78 m or less
125 kbps
500 m or less
156 m or less
Thin cable
Common
100 m or less
-
Terminal resistor
121 Ω±1% (1/4 W)
● Specifications of special communication cable for DeviceNet
Item
Thick cable
Thin cable
Signals
Power supply
Signals
Power supply
Conductor cross
sectional area
AWG18 (0.82 mm
2
)
AWG15 (1.65 mm
2
)
AWG24 (0.20 mm
2
)
AWG22 (0.33 mm
2
)
Color
Blue, White
Red, Black
Blue, White
Red, Black
Impedance
120 Ω±10% (1 MHz)
-
120 Ω±10% (1 MHz)
-
Transmission
delay
1.36 ns/ft (max.)
-
1.36 ns/ft (max.)
-
Attenuation ratio
0.13 db/100 ft@125 kHz (max.)
0.25 db/100 ft@500 kHz (max.)
0.36 db/100 ft@1 MHz (max.)
-
0.29 db/100 ft@125 kHz (max.)
0.50 db/100 ft@500 kHz (max.)
0.70 db/100 ft@1 MHz (max.)
-
Conductor
resistance
6.9 Ω/1000 ft (max.)
3.6 Ω/1000 ft (max.)
28 Ω/1000 ft (max.)
17.5 Ω/1000 ft (max.)
(3) Termination resistor wiring
Be sure to connect terminal resistors to the
units at both ends of the DeviceNet main cable
. (Refer to (2)
Wiring for communication shown above.)
For terminating resistor, connect a resistor of 121Ω +/-1% and 1/4 W between “CAN_H” and “CAN_L”.
Preparation of the terminating resistor is made by the user.
Details of communication connector for DeviceNet
Terminal
Wire
color
Connection
V+
Red
(+) side of power supply for
DeviceNet communication
CAN_H
White
(High) side of communication cable
FG (DRAIN)
-
Ground / Shield wire
CAN_L
Blue
(Low) side of communication cable
V-
Black
(-) side of power supply for
DeviceNet communication
Red White FG(DRAIN)
Red White FG (DRAIN) Blue
White
Blue
Terminating resistor
White
Blue
Blue Black
Black
Slave
Branch
cable
Slave
Slave
Slave
Slave
Slave
Slave
Slave
Slave
T Branch
T Branch
T Branch
T Branch
T Branch
Termination registor
Branch cable
Multidrop
Main cable
Max. 6m
Branch
cable
Termination registor
Termination resistor
