Rockwell-automation 284E ArmorStart with EtherNet/IP - User Manual Manuale Utente Pagina 61

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Rockwell Automation Publication 280E-UM001B-EN-P - July 2012 61
Introduction to EtherNet/IP and Device Level Ring Technology Chapter 3
Linear Network Introduction
A linear network is a collection of devices that are daisy-chained together.
Figure 42 - Linear Network Collection of Devices
In this topology a communication issue in the media or device will prevent nodes
downstream from communicating.
Figure 43 - Communication Issue in the Media or Device Line
The EtherNet/IP embedded switch technology allows this topology to be
implemented at the device level. No additional switches are required.
These are the primary advantages of a linear network:
The network simplifies installation and reduces wiring and installation
costs.
The network requires no special software configuration.
Embedded switch products offer improved CIP Sync application
performance on linear networks.
The primary disadvantage of a linear network is that any break of the cable
disconnects all devices downstream from the break from the rest of the network.
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