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SmartController EX User's Guide
11069-000 Rev. H
6.4 DeviceNet Physical Layer and Media
lines made of thick or thin cable. The baud rate, maximum distance from end-to-end of the net-
work, and cable size are dependent on each other. See the table Features of a DeviceNet Net-
work on page 63 for further details.
Multiple Node
Branching
Drop Line
Multiple Node
Daisy Chain
Drop Line
Drop Line
Zero-Length Drop Line
Terminating
Resistor
Multi-port
Tap
Tap
Multi-port
Tap
Drop Line
Short Drop Lines (6 m / 20 ft)
2
10
9
8
7
6
5
4
3
1
Node
Terminating
Resistor
2
Node
1
Node
1
Node
1
Node
1
1
1
1
Node
Node
Node
Node
1
Node
1
Node
1
Node
1
Node
1
Node
1
Trunk Line
4
5
Figure 6-1. Trunk Lines and Drop Lines Made of Thick and Thin Cable
Table 6-2. Topology Description
Item
Description
1
Node
2
Terminating Resistor
3
Multiple Node Branching Drop Line
4
Multi-Port Tap
5
Drop Line
6
Trunk Line
7
Multiple Node Daisy Chain Drop Line
8
Tap
9
Zero-Length Drop Line
10
Short Drop Lines (6 m)
DeviceNet allows devices to be powered directly from the bus, and devices can use the same
cable to communicate with other devices on the bus. DeviceNet nodes are hot-pluggable —
you can remove or add components on the bus without powering down the network.
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