Ethernet Unit Function Guide

Section 1-1

Mail software

 

Sending e-mail

 

Internet

 

IP router

 

Firewall

Intranet

(Office floor)

(Server room)

DNS server

Mail software

POP3 server

 

SMTP server

 

SNTP server

Sending e-mail

 

Ethernet

Ethernet

 

Router

Router

(Production line)

Writing command

File attachment enabled

Ethernet

Writing command

File attachment enabled

Receiving e-mail

Ethernet Unit

 

Receiving e-mail at the PLC

Reference

SECTION 3 Mail Receive Function in the Operation Manual Construction of

 

Applications

Exchanging Large Files between a Personal Computer and PLC

Operation

Use the FTP server function.

 

The FTP server function makes it possible to log in to the Ethernet Unit from a

 

computer (FTP client) as required, and to specify folders and files to be trans-

 

ferred. The following items can be used as PLC File Memory.

A Memory Card (mounted to the CPU Unit)

EM File Memory (The portion of the EM Area in the CPU Unit's I/O mem- ory used by the CX-Programmer as File Memory)

Reference

SECTION 4 FTP Server Function in the Operation Manual Construction of

 

Applications

Creating an Original Communications Procedure Using TCP/IP (UDP/IP) for the Host Application or Communicating with PLCs from Another Manufacturer

Operation

Using the socket services function, create a communications application in

 

the ladder program.

 

With the socket services function, TCP/IP or UDP/IP can be used directly to

 

receive data. Use the socket services to create applications based on manip-

 

ulating control bits or the CMND(490) instruction.

Reference

SECTION 4 Socket Service Function in the Operation Manual Construction of

 

Applications

7

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Omron CS1W-ETN21 operation manual Ladder program, Ulating control bits or the CMND490 instruction