2 ip addresses in fins communications, Ip addresses in fins communications, Specifying nodes in fins communications services – Omron CS1W-ETN21 User Manual

Page 121: Allocating addresses to ethernet units

IP Addresses in FINS Communications

Section 5-2

5-2

IP Addresses in FINS Communications

5-2-1

Specifying Nodes in FINS Communications Services

With FINS communications services on an Ethernet network, IP addresses,
UDP port numbers, and TCP port numbers are paired with FINS node
addresses to specify nodes on the network.

Note

Use the “Node No.” rotary switch on the front of the Ethernet Unit to set the
FINS node address.

Allocating Addresses to Ethernet Units

Ethernet Unit FINS
Message Reception

The IP address, FINS/UDP port number, and FINS/TCP port number set for
the Ethernet Unit are mainly used when receiving FINS communications mes-
sages.

• Ethernet address:

A fixed number is assigned to each Ethernet Unit
and it cannot be changed.

• IP address:

Either use the default IP address
(192.168.250.FINS_node number), or set the
address in the word allocated in the DM Area or
in the Unit Setup from the CX-Programmer.

• FINS/UDP port number: Either use the default FINS/UDP port number

(9600) or set the number using the CX-Program-
mer's Unit Setup.

• FINS/TCP port number: Either use the default FINS/TCP port number

(9600) or set the number using the CX-Program-
mer's Unit Setup.

• FINS node address:

Set the number using the NODE NO. rotary
switch on the front of the Ethernet Unit.

Application level

Transport level

Internet level

Physical level

FINS

UDP

Ethernet

Node number

UDP port
number

TCP port
number

TCP

IP address

Ethernet address

Must be allocated.

Automatically allocated