Specifications

CJ1W-ETN21

2.7

90

 

 

 

 

 

 

 

Section 1-4

 

 

31

 

 

 

 

65

ETN21

 

 

 

 

 

 

RUN

ERC

SD

RD

 

 

LNK

100M

ERH

TCP

FTP

 

HOST

 

 

 

2 4

7

UNIT

 

 

 

3

56

 

 

 

 

01

 

 

8

No.

 

 

 

E

 

A9

 

 

 

F

 

 

 

 

 

 

 

DCB

 

 

 

 

 

2 4

7

NODE

 

 

 

3

56

 

 

 

 

01

 

 

8

No.

 

 

 

E

 

 

9

 

 

 

 

A

 

 

 

 

F

 

 

 

 

 

 

 

DCB

 

1

 

 

 

 

 

 

 

x16

 

 

 

3456

 

 

 

 

2

 

7

 

 

 

 

01

 

 

8

 

 

 

 

E

 

 

9

 

 

 

 

 

A

 

 

 

 

F

 

 

 

 

 

 

 

DCB

 

0

 

 

 

 

 

 

 

x16

 

100BASE-TX

 

 

 

 

10BASE-T

 

 

 

 

2.7

(Unit: mm)

1-4-3 Software Configuration

The software supported by the Ethernet Unit runs in the layers shown in the following diagram. The components that form the various layers are defined below the diagram.

CS/CJ-series CPU Unit

 

Memory Card /

 

EM File Memory

 

 

 

 

 

 

 

FINS communi-

 

 

 

 

E-mail

 

E-mail

 

 

 

 

 

 

 

 

 

 

 

Socket

 

cation service

 

 

Socket

 

 

FTP

 

 

 

 

 

transmis-

 

reception

 

services

 

7. FINS

 

 

services

sion

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

11. SMTP

FINS/UDP FINS/TCP

 

 

 

9. SMTP

10. POP3

 

 

8. FTP server

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5. UDP

 

 

 

 

 

 

 

6. TCP

 

 

 

 

 

 

 

2. IP

 

 

3. ICMP

 

4. ARP

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1. Ethernet (Ver. 2.0)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CS/CJ-series CPU Unit

Ethernet

Unit

1,2,3... 1. Ethernet (Ver. 2.0)

The Version 2.0 Ethernet frame format is used for communications.

2.IP (Internet Protocol)

Transfers datagrams to destination nodes using IP addresses.

3.ICMP (Internet Control Message Protocol)

Supports IP communications by signalling errors in data transfers.

4.ARP (Address Resolution Protocol)

Determines the Ethernet address (i.e., physical address) by broadcasting based on the target IP address.

16

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Omron CS1W-ETN21 operation manual Software Configuration