Omron CS Series User Manual

97
IP Addresses in FINS Communications Section 5-2
• 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.
Pairing IP Addresses with
FINS Node Addresses at
Local Nodes
A particular IP address is allocated to each communications node, including
Ethernet Units. The IP address must be paired with the FINS node address (1
to 254) by one of the following methods.
Automatic Generation Method (Dynamic/Static)
Set the relation between the IP address and the FINS node address for the
Ethernet Unit according to the following equation. If the setting does not con-
form to this equation, a setting error will be generated and the ERH indicator
will flash.
FINS node address = IP address host number
IP Address Table Method and Combined Method
With these methods, the IP address and the FINS node address for the Ether-
net Unit have no particular relationship. Set both the FINS node address and
the IP address so that they are not duplicated in the network.
Sending Ethernet Unit
FINS Messages
When the Ethernet Unit sends a FINS message, it must determine the remote
node's IP address, UDP port number, and TCP port number. The relation-
ships between all addresses, such as remote FINS node addresses and IP
addresses, are managed by an internal table at the Ethernet Unit.
When the Ethernet Unit is turned ON or restarted, the internal table is gener-
ated automatically from the various settings that have been made. Depending
on the setting method used, data such as remote IP addresses are changed
dynamically. (Dynamic changes can be prohibited.)
Remote FINS node
address
Remote IP address
(Example)
Connection Remote port
number (Example)
1 192.168.250.1 UDP 9600
2 192.168.250.2 UDP 9600
to
254 192.168.250.254 UDP 9600

Omron CS Series Specifications

General

Brand	Omron
Model	CS Series
Category	Network Hardware
Language	English