Allen-Bradley ControlNet Compact GuardLogix 1769, User Manual, Page: 24 / 100

Chapter 1 ControlNet Overview
Number of Nodes
Each ControlNet network supports up to 99 nodes. Logix5000 controllers
support multiple ControlNet networks, providing the flexibility to add nodes to
a ControlNet network or boost performance.
Lengths
In a ControlNet network, the maximum length depends on the number of nodes
on a segment; a segment is a section of trunk between two terminators. Use
repeaters to add segments or increase length.
Figure 8 - Maximum Length of a ControlNet Network
Maximum Allowable Segment Length = 1000 m (3280 ft) - 16.3 m (53.4 ft) X [Number of Taps - 2]
1000 (3280)
750 (2460)
500 (1640)
250 (820)
This graph assumes that a 1786-RG6 cable is being used.
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Rockwell Automation Publication CNET- UM001E-EN-P - June 2016
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