Rockwell Automation 2098-IPD-020-DN Ultra5000 Series Intelligent Positioning Drives with DeviceNet Reference Manual - Manual (Page 10)

Publication 2098-RM002A-EN-P – October 2001
1-2 The DeviceNet Interface
DeviceNet Connector Pins and Signals (P2)
Planning Your DeviceNet Network
A DeviceNet network is a planned arrangement of electrical power
and device distribution that is adjusted for optimal communications.
Before you add devices, record the following:
• Network data rate
• Network cable system map (topology) to which you are connecting
• Distances between cable system components
• Device current draw and voltage drop for each device on the
network
• Limitation of the trunk and drop cables
Refer to the table below for recommended trunk and drop lengths.
Refer to the DeviceNet Cable System Planning and Installation
Manual (publication DN-6.7.2) for specific guidance in calculating
and attaching the Ultra5000 to a network.
Pin Description Signal
1 Network Power Common 24V DC V-
2 Network Communication Signal Line Can_L
3 Shield Shield
4 Network Communication Signal Line Can_H
5 Network Power 24V DC V+
Data Rates 125 Kbps 250 Kbps 500 Kbps
meters feet meters feet meters feet
Thick Trunk Lines 500 1640 250 820 100 328
Thin Trunk Lines 100 328 100 328 100 328
Maximum Drop Length 6 20 6 20 6 20
Cumulative Drop Budget 156 5120 78 256 39 128