Rockwell Automation 1786-series ControlNet Coax Media Planning and Installation Guide - Manual (Page 9)

9 Publication CNET-IN002B-EN-P - June 2010 9
Chapter
1
ControlNet Cable System Overview
Introduction The ControlNet cable system gives you the flexibility to design a
communication network for your particular application. This chapter provides
an overview of the parts comprising the network so you have a better
understanding of how to configure your application. We strongly recommend
that you spend sufficient time on planning your network installation
requirements before assembling any of the hardware.
The table lists the essential components for a ControlNet coax cable system.
The illustration provides an overview of NetLinx architecture, including the
ControlNet network, that operates in conjunction with international
standards.
Topic Page
Basic Cable Terminology 10
Elements Comprising the Coax Media System 11
Node 11
Tap 11
Trunk Cable and Connectors 12
Segment 13
Repeater 14
Link 15
Bridge 15
To Generic Cabling
System According to
ISO/IEC 24702
AO
HMI I/O PLC
Linking
Device
Linking
device
EtherNet/IP
ControlNet
Coupling/
Adaptor
HMI I/O PLC
Linking
Device Potentially Explosive Area
Coupling/
Adaptor
ControlNet IS
HMI I/O PLC
Components Must Be IS-rated
DeviceNet
HMI I/O PLC
45097
Isolation
Barrier