Ethernet Unit Function Guide

Section 1-1

1-1 Ethernet Unit Function Guide

1-1-1 Overall System Configuration Example

The following diagram shows an example of an overall system configuration using Ethernet Units.

(1) Connecting the CX-Programmer to the PLCs online via Ethernet

Mail

CX-Programmer

Mail software

Mail

 

 

FINS

 

 

 

 

 

 

 

 

Internet

IP router

Firewall

Server Room

DNS server

POP3 server

SMPT server

SNPT server

Ethernet

Router

(5) Transferring large data files between

(6) Configuring an independent communications protocol

personal computers and PLCs

for the host application using TCP/IP (UDP/IP)

Intranet

 

 

 

 

 

 

Office Floor

 

 

 

 

 

FTP software

CX-Programmer

 

 

 

Independent user

Mail software

SCADA software

 

 

 

application

 

 

 

 

 

 

PLC Reporter, Compolet

 

 

 

 

 

 

 

 

 

 

 

FinsGateway

 

 

 

 

 

 

 

FTP

(communications driver)

UDP/TCP socket

 

 

 

 

 

 

Large files

 

 

 

Ethernet

 

 

 

 

 

 

 

 

 

 

 

 

 

Router

(4) Receiving mail (data, files) at

(Factory line)

PLCs

 

 

 

Receiving mail

Writing

 

commands

Ethernet

 

CX-Programmer

NS-series PT

FINS

 

FINS

Sending mail

(3)Capturing PLC changes and sending the status of equipment to an operator

(7)Automatically adjusting the PLC's internal clock periodically

Ethernet Unit

Ethernet Unit

PLC

PLC

FINS message

Memory Card

communications

 

(2)Sending and receiving data via Ethernet between OMRON PLCs

(1)Connecting the CX-Programmer to PLCs online via Ethernet

FINS message communications

Wireless

FINS

1-1-2 Determining the Objectives

Connecting the CX-Programmer to PLCs Online via Ethernet

Connecting within the Same Segment

Use the UDP/IP version of the FINS communications service (i.e., FINS/ UDP). FINS/UDP is supported by many OMRON products and is compatible with earlier Ethernet Units (CS1W-ETN01/ETN11 and CJ1W-ETN11). The CX-Programmer can be connected and used with FINS/UDP even if personal computer middleware (FinsGateway) is not used. FinsGateway (any version) can also be used together with the CX-Programmer.

2

Page 27
Image 27
Omron CS1W-ETN21 Ethernet Unit Function Guide, Overall System Configuration Example, Determining the Objectives, Section