System Configuration

Section 1-3

1-3 System Configuration

1-3-1 System Configuration

CX-Programmer

CX-Integrator

FinsGateway

(3) Hub

(2) Twisted-pair cable

100 m

(1) CS1W-ETN21

max.

Ethernet Unit

 

(100Base-TX)

 

 

CS-series

PLC

(1)CJ1W-ETN21 Ethernet Unit (100Base-TX)

CJ-series

PLC

1-3-2

Devices Required for Constructing a Network

 

 

The basic configuration for a 100Base-TX Ethernet System consists of one

 

 

hub to which nodes are attached in star form using twisted-pair cable.

 

 

The devices shown in the following table are required to configure a network

 

 

with 100Base-TX-type CS1W-ETN21 and CJ1W-ETN21 Ethernet Units, so

 

 

prepare them in advance.

 

 

 

 

 

 

Network device

Contents

 

 

 

 

 

 

(1) CS-series Ethernet

These Ethernet Units are Communications Units that

 

 

Units (CS1W-ETN21)

connect a CS-series or CJ-series PLC to 100Base-TX

 

 

or CJ-series Ethernet

Ethernet networks. (They can also be used as 10Base-T.)

 

 

Units (CJ1W-ETN21)

 

 

 

 

 

 

 

(2) Twisted-pair cable

This is twisted-pair cable for connecting 100Base-TX-type

 

 

 

Ethernet Units to the hub, with an RJ45 Modular Connec-

 

 

 

tor at each end.

 

 

 

Use a category 3, 4, 5, or 5e UTP (unshielded twisted-

 

 

 

pair) or STP (shielded twisted-pair) cable.

 

 

 

 

 

 

(3) Hub

This is a relay device for connecting multiple nodes in a

 

 

 

star LAN.

Recommended Hubs

 

 

For details on recommended devices for constructing a network, refer to 2-4

 

 

Network Installation.

 

1-3-3 Setup Area and Related Peripheral Devices

Making Settings in the

CPU Bus Unit System

Setup Area (with the CX-

Programmer)

For the Ethernet Unit to function as a node on an Ethernet network, make the settings, as required, in the CPU Bus Unit System Setup Area allocated in non-volatile memory in the CPU Unit.

Use the CX-Programmer to make the settings (by connecting online from the I/O Table Window, selecting the Ethernet Unit, and then selecting Unit Setup). Each time the Ethernet Unit is turned ON or restarted, it reads and uses the contents of the CPU Bus Unit System Setup Area as the settings for the com- munications services.

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Omron CS1W-ETN21 operation manual System Configuration, Devices Required for Constructing a Network, Recommended Hubs