ADwin System with Ethernet Interface
ADwin
52 ADwin Installation, manual version 2.1, December 2005
same network identification and different host identifications. The subnet mask
(4 bytes) determines which part of the IP address is the network identification
and which part is the host identification.
My own Host-IP If you want to know the host-IP of your own PC, start a DOS shell and call the
program ipconfig. You can as well ask your system administrator for your
host-IP.
IP and subnet mask IP address and subnet mask are mostly displayed in decimal code, separated
by a dot, for example:
Each digit, separated by a dot may have the values 0 to 255.
If you look at the subnet mask and IP address in binary code, the relation is
more clearly seen:
In the subnet mask "1" determines that this place in the IP address is the net-
work identification. Any "0" digit is the host identification. Usually, the "1" and
"0" digits are set consecutively and in groups of 8. Discrepancies are possible
(e.g. in a private network).
In the example above "192.168.0" is the network identification and "1" the
host identification.
The subnet mask also determines the maximum number of the TCP/IP devices
in a network, in this example 255.
– The host identification 0 and the highest possible host identification are
reserved and must not be allocated.
– The size of the host identification can vary between 2 bits and 32 bits
depending on the subnet mask.
The following examples show the configuration of the host IP and subnet mask
when working with different applications.
Example 1:
Intranet If you want to operate the ADwin Ethernet interface in an intranet, ask your sys-
tem administrator for the subnet mask and a free IP address for your module.
Example 2:
Own network card If you connect the ADwin Ethernet interface with a network card in your PC via
a so-called "cross-over" cable (standard delivery), you can make the following
configurations:
NIC = Network Interface Card
IP address: 192.168.0.1
Subnet mask: 255.255.255.0
IP address 11000000.10101000.00000000 . 00000001
Subnet Mask 11111111.11111111.11111111 . 00000000
network identification host-
identifica-
tion
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PC with NIC
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ADwin
system
ADSPENET
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