Fl-Net Physical Layer; Ip Address; Figure 8-2 Fl-Net Ip Address; Table 8-2 Ip Address Classification - Hitachi FL.NET User Manual

8.1.3 FL-net physical layer

For a transmission speed of 100 Mbps, the Ethernet physical layer offers five different
transmission methods: 100BASE-TX, 100BASE-FX, 100BASE-T, 100BASE-T2, and 10BASE-
T4.
The FL-net adopts 100BASE-TX.

8.1.4 IP address

An address named "IP address (INET address)" is used to differentiate a specified communication
device from many other communication devices connected to Ethernet. Therefore, all the
communication devices connected to Ethernet must have unique IP addresses.
The IP address is divided into two sections. One section shows a network address to which a
communication device is connected. The other section indicates a host address for the
communication device. Three different network classes (A, B, and C) are used depending on the
network size (Classes D and E are additionally used for special purposes).
Class A
Class B
Class C
The IP addresses of communication devices connected to a network have the same network
address section and a unique host address section that is not duplicated within the network.
The FL-net uses a Class C IP address. It is recommended that you set the network address to
"192.168.250.N" (N is a node number between 1 and 254). It is also recommended that the
low-order host address coincide with an FL-net protocol node number.
31 30 29
2 2 2
1 1 0
Fixed

Table 8-2 IP Address Classification

First 1-octet value Network address section
0 to 127
128 to 191
192 to 223
Shaded "xxx" portions represent the associated address sections.
28 27
2 2
X

Figure 8-2 FL-net IP Address

xxx.xxx.xxx.xxx
xxx.xxx.xxx.xxx
xxx.xxx.xxx.xxx
Network address
8-3
8 APPENDIXES
Host address section
xxx.xxx.xxx.xxx
xxx.xxx.xxx.xxx
xxx.xxx.xxx.xxx
8 7
2 2
Host address
0
2