Omron CS1W-CRM21 - Componet Networks; Overview; Overall System Configuration and Elements

2
CompoNet Networks Section 1-1
1-1 CompoNet Networks
1-1-1 Overview
CompoNet Networks feature easy operation and installation in a component-
level network connecting PLCs and on-site I/O.
The PLC and CompoNet Slave Units cyclically exchange I/O information
through a CompoNet Master Unit, refreshing I/O in sync with the PLC scan.
Message communications can also be used from host computers or the CPU
Unit of the PLC to read and write CompoNet Slave Unit data.
1-1-2 Overall System Configuration and Elements
A CompoNet Network is a remote I/O system that consists of the following
elements.
System Configuration Example
Multidrop connection on branch line
CompoNet Master Unit
Branch
line
Slave Unit
Trunk line
Repeater Unit
Branch line
Branch
line
Branch line Branch line
Sub-branch
lines
Repeater Unit
Branch line Branch line
Repeater
Unit
Slave Unit
Repeater
Unit
Repeater
Unit
Sub-trunk line
: Repeater Unit
: T-branch
: Multidrop
Terminating
Resistor
Terminating
Resistor
Terminating
Resistor
Terminating
Resistor
Terminating
Resistor
Terminating
Resistor
Sub-trunk
line
: Terminating Resistor
Sub-trunk
line
Sub-trunk line
Sub-trunk line