Omron CS Series User Manual

100
IP Addresses in FINS Communications Section 5-2
Example
Combined Method The combined method combines the IP address table method and the auto-
matic generation method (dynamic).
First the IP address table is referenced. Then, if the applicable FINS node
address is found, the corresponding IP address is read. If the FINS node
address is not found, the IP address is calculated using the automatic genera-
tion method (dynamic).
The internal table will be as follows:
• FINS Node Address Registered to IP Address Table
The following address is registered to the internal table.
• Remote IP address: IP address registered to IP address table
• Remote UDP port number: UDP port number set for local Unit
• Connection method: FINS/UDP
• FINS Node Address Not Registered to IP Address Table
The following address is registered to the internal table.
• Remote IP address: Local IP address network number + FINS
node address
• Remote UDP port number: UDP port number set for local Unit
• Connection method: FINS/UDP
With the combined method, records of FINS nodes registered to the IP
address table are not dynamically changed. For all others nodes, the data
from FINS nodes registered with a remote IP address of 0.0.0.0 can be
dynamically changed when the Unit is turned ON or restarted, according to
FINS messages received from remote nodes. This can be used effectively
when the remote node is a device such as a personal computer and IP
addresses are dynamically changed by a method such as DHCP.
18
20
23
153.214.0.62
153.214.0.129
153.218.51.8
25 153.218.51.10
When FINS Command is Sent
FINS node number
Node number in
IP address table
IP address table
FINS node
number
IP address
IP address 153.214.0.129
FINS command sent
When FINS Command is Received
FINS node number
Node number not
in IP address table
Changed
Internal table
IP address 153.218.51.10
FINS response returned

Omron CS Series Specifications

General

Brand	Omron
Model	CS Series
Category	Network Hardware
Language	English