Rockwell Automation 160 DEVICENET (DN1) MODULE FRN 1-2.XX - Manual (Page 22)

Publication 0160-5.5 - September 1997
Installation and Wiring 3-7
Wiring the DeviceNet Connector Follow these recommendations for communications wiring:
• See DeviceNet Cable System for planning and installation of
Device Net networks.
• Keep communication wiring away from high noise sources such
as motor cables.
• To increase noise immunity:
– Use trunk line in place of drop line.
– Use a ferrite cable clamp around the communication line. See
Figure 3.6.
– Ground the cable shield as shown in Figure 3.6.
Figure 3.6
Wiring the DeviceNet Connector
The Communication Module receives power and communications through the DeviceNet connector.
DeviceNet cable wires connect to the DeviceNet plug terminal block as shown in the following table.
Color Terminal Signal Function
Black 1 COMM Common
Blue 2 CAN_L Signal Low
Bare 3 SHIELD Shield
White 4 CAN_H Signal High
Red 5 VDC+ Power Supply
Red
White
Bare
Blue
Black
DeviceNet Trunk Line or Drop Line
Trunk line is recommended for greatest
noise immunity.
Grounding Recommendations
Attach bare wire to earth GND as close to drive as
possible. For greatest noise immunity, drive should be
single point ground.
Important: For each DeviceNet Network with multiple
devices, only one device must be grounded.
Optional Clamp-On Ferrite Cable Clamp
Install core within 10 cm (4") of Communication
Module. Use Ferrishield (part #HI28B2039) or
Fair-Rite (part #0443164151 – quantity of 2 required).
5
4
3
2
1