Omron CS CJ1W-ETN21 User Manual

Page 191

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FINS/UDP Method

Section 7-3

UDP port number:

FINS UDP port number (Ethernet Unit of relay node)

FINS addresses (Remote node CPU Unit):

Network address: 2
Node address: 1
Unit number: 0

FINS addresses (Host computer):

Network address: 1
Node address: 50
Unit number: 0

FINS/UDP Sample
Program

Operation Overview

• This program reads 150 words of the PLC memory beginning at D00100

by sending a FINS command (MEMORY AREA READ, command code
0101) from a UNIX workstation (WS) to the PLC on the Ethernet network.

• If no response is received within two seconds of sending the FINS com-

mand, the command will be resent.

Settings

• The Ethernet Unit IP address is 196.36.32.100, and the FINS node

address is 100. IP address conversion is set to automatic generation
(dynamic).

• The FINS UDP port number for the Ethernet Unit is 9600 (default).

• The workstation’s IP address is 196.36.32.50 and its FINS node address

is 50.

• The FINS UDP port number for the workstation can be a user-set number

(if set to 0, the system automatically allocates an available port).

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