57
Connecting to the Network
Section 3-3
Obtaining the FINS Node Address from the Automatic Generation Method
of Address Conversion
The FINS node address corresponding to the computer’s IP address is
obtained from the rightmost byte of the computer’s IP address and the right-
most byte of the network address as follows:
FINS node address = The rightmost byte of (the Ethernet Unit’s IP address
AND the Ethernet Unit’s subnet mask) XOR the rightmost byte of the com-
puter’s IP address.
This can be easily calculated using the Windows Calculator.
Note
Address conversion from the Ethernet Unit’s automatic generation method is
obtained as follows.
Computer’s IP address = (the Ethernet Unit’s IP address AND the Ethernet
Unit’s subnet mask) OR FINS node address.
Accordingly, the FINS node address can be determined by taking the XOR of
the network address and the computer’s IP address.
Calculation example:
Computer’s IP address = 192.168.10.100
Ethernet Unit’s IP address = 192.168.10.119
Ethernet Unit’s subnet mask = 255.255.255.224
FINS node address = (119 AND 224) XOR 100 = 4
130.
25.
36.
8
AND
255.
255.
255.
0
130.
25.
36.
0
OR
5
130.
25.
36.
5
(1)
(2)
Ethernet Unit’s IP address
Ethernet Unit’s subnet mask
(obtain the “network address”)
FINS node address
Computer’s IP address
XOR of (1) and (2)
192.
168.
10.
119
AND
255.
255.
255.
224
130.
25.
36.
0
OR
5
192.
168.
10.
100
(1)
(2)
Ethernet Unit’s IP address
Ethernet Unit’s subnet mask
(obtain the “network address”)
FINS node address
Computer’s IP address
XOR of (1) and (2)
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