4-2SectionCPU Bus Unit System Setup
44
4-2-1 Settings
Item CX-Programmer default
Broadcast setting All 1s (4.3BSD specifications)
Address conversion method Automatic address generation
FINS UDP port number 9600
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.
Broadcast Settings
Set the method for specifying the broadcast address.
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)
Address Conversion Method
Set the method for converting the FINS node number to an IP address.
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.
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)
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
Note When using automatic address generation (the default) for address conversion,
set local IP address DIP switches 7 and 8 on the back of the Ethernet Unit to the
same value as the node number setting on the front of the Unit, and set all other
host settings to 0. If the IP address host number does not match the node num-
ber, the ERC indicator will flash.
IP Address Table
With an IP address table, the address is converted according to a preset table of
correspondences (i.e., an IP address table) between FINS node numbers and
IP addresses.
The following is an example of an IP address table.
Destination FINS address Destination IP address
FINS node
number
IP address
23 150.31.3.68
11 150.31.2.83
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