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FINS/TCP Method Section 7-4
■ Example 2: Host Computer and Remote Node Connected Via Relay Node
(Ethernet Unit)
Destination IP Address: 196.36.32.100 (Ethernet Unit of relay node)
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/TCP 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, an error will occur.
Settings • The Ethernet Unit IP address is 196.36.32.100, and the FINS node
address is 100.
• The FINS TCP port number at the Ethernet Unit (server side) is 9600
(default).
• The workstation’s IP address is 196.36.32.50 and the FINS node address
is allocated automatically.
• The FINS TCP port number at the workstation (client side) can be user-
set (if set to 0, the system automatically allocates an available port).
Host computer
IP address: 196.36.32.50
FINS network address: 1
FINS node address: 50
FINS unit number: 0
Relay node
IP address: 196.36.32.100
Ethernet
Remote node
FINS network address: 2
FINS node address: 1
FINS unit number: 0
Controller Link
Ethernet
Unit
Controller Link
Unit