Omron CS Series User Manual

101
IP Addresses in FINS Communications Section 5-2
Example
Note When an internal table IP address has been changed with the reception of a
FINS command, this is sent to the IP address in the internal table.
Prohibiting Dynamically Changing Remote IP Addresses
For Ethernet Units with Unit Ver. 1.3 or later, methods used to dynamically
change remote IP addresses (automatic generation, IP address table, or com-
bined (mixed) method) can be prohibited (protected against). Use the CX-Pro-
grammer unit setting function (version 5.0 and higher) or Web function setting
window to make this setting.
When dynamically changing remote (destination) IP addresses is prohibited,
the internal table for each method is maintained in the state when the power
was turned ON or restarted. Therefore, protection can be provided against
access using FINS/UDP from personal computers or other devices that have
dynamically changing IP addresses. To prohibit (protect from) dynamic
changes, deselect the Change Dynamically option in the Setup Tab of the Unit
Setup.
When FINS Command is Sent
FINS node number
FINS node number
Node number in
IP address table
18
20
23
153.214.0.62
153.214.0.129
153.218.51.8
25 153.218.51.10
Node number not
in IP address table
Automatic
generation
method
IP address table
FINS node
number
Network number: xx.xx.00.00
IP address
FINS node number: xx
+
IP address
FINS command
sent
IP address
(See note.)
FINS command
sent
When FINS Command is Received
Node number
not in IP
address table
Changed
Internal table
IP address
153.218.51.10
FINS response
returned
Automatic
generation
method
(dynamic)
IP address
method

Omron CS Series Specifications

General

Brand	Omron
Model	CS Series
Category	Network Hardware
Language	English