Ethernet Units Operation Manual

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CPU Bus Unit System Setup Section 4-2
mer. With CJ-series Ethernet Units, however, it is possible to set the local IP
address and the subnet mask using the FINS command IP ADDRESS
WRITE. For details, refer to
11-3-20 IP ADDRESS WRITE.
4-2-1 Settings
Broadcast Settings
Set the method for specifying the broadcast address.
Address Conversion Method
Set the method for converting the FINS node number to an IP address.
Automatic Address Generation
With the automatic generation, the FINS node number is regarded as the host
number of the IP address, just as it is.
Destination IP address = (Local IP address and subnet mask) + Destination
FINS node number
With the CS Series, the local IP address is set using the local IP address
switches (rotary switches) on the back of the Unit. With the CJ Series, the
local IP address is set using either the CPU Bus Unit System Setup or the
allocated words in the DM Area. The method used depends on whether or not
the local IP address setting in the CPU Bus Unit System Setup is 00.00.00.00.
For details, refer to
Local IP Address (CJ Series Only).
Example
Local IP address: 130.25.36.8
Subnet mask: 255.255.0.0
Destination FINS node number:5
→Destination IP address = 130.25.0.5
Item CX-Programmer default
Broadcast setting All 1s (4.3BSD specifications)
Address conversion method Automatic address generation
FINS UDP port number 9600
Local IP address (CJ Series only) 0.0.0.0 (The local IP address set in allo-
cated words m+98 and m+99 of the DM
Area is enabled.)
Subnet mask 0.0.0.0 (A value corresponding to the IP
address is used.)
FTP login name Not set. (CONFIDENTIAL)
FTP password Not set.
IP address table Not set.
IP router table Not set.
Setting Meaning
All 1s (4.3BSD) (Default) Broadcast with host number set to all ones. (4.3BSD
specifications)
All 0s (4.2BSD) Broadcast with host number set to all zeroes. (4.2BSD
specifications)
Setting Meaning
Automatic generation
(Default)
Uses automatic address generation. The IP address is
automatically generated from the FINS node number
without using an IP address table.
IP address table Uses an IP address table.
Combined Uses both automatic address generation and an I/O
address table.