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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Omron CJ1W-ETN21 FINS/UDP Sample Program, Operation Overview, By sending a Fins command Memory Area READ, command code