Hitachi CMU Series User Manual page 98

An IP address is represented in decimal; the eight-bit values are delimited from each other by a
period ("."). For example, an IP address of class C is represented as shown below.
A network is determined by a network number. Define a unique host number for each host in
the network. If the number of hosts in a network is 200 or less, select class C. For example, if
(192.001.000) is set as a network number and five hosts are connected to the network, set the IP
address of each station as follows:
Station A: 192.001.000.001
Station B: 192.001.000.002
Station C: 192.001.000.003
Station D: 192.001.000.004
Station E: 192.001.000.005
Host number
1
A
There are two special IP addresses: one indicates the entire network by setting all bits of host
number of 0, and the other is the broadcast address in which all bits of host number are set to 1.
The broadcast address is used when data is sent to all stations belonging to the network. (In this
case, send data by UDP/IP communication.)
11000000 00000001
.
192 001
Network address
Host number
2
B
Host number
00000000
.
000
Host number
3
C
E
5
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5 USER GUIDE
00000001
.
001
Host number
Host number
4
Network number
D
(192.001.000)