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Chapter 7: Computer Link Function
[3] IP addresses on an Ethernet
In general, the UDP/IP uses a 32-bit logical address called the "IP address."
The IP address consists of a network address and a host address. Normally, a class C configuration is
used in the FA industry.
Host address
Network address
Class C
1
1
0
X
(8 bits)
(20 bits)
IP address classifications on an Ethernet
Each 8 bits of the address are separated by a period and can be expressed as a decimal number. For
example, class C IP addresses are expressed as follows.
11000000
00000010
00000000
00000011
192
001.
000.
003.
Network address
Host number
Note: The default address in the FL-net address scheme is 192.168.250.N (N: Node numbers 1 to 254).
7
An example of an IP address on a class C Ethernet
7-5
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