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9 Ethernet
Communication
(NL-220, NL-220F)
You may need to ask your network administrator for advice about setting up the Ethernet connection.
Ethernet set up is not affected by cold booting the NL220.
9.1 Connection
The Ethernet link uses a 10 base-T connection on an RJ45 connector. The NL-220 Series controller
can be connected to a network switch (or hub or router). It is also possible to connect it direct into the
network port on a PC by using a crossover cable.
9.2 IP Address
The NL-220 Series controller needs an IP address to communicate over Ethernet. There are two
ways to get an IP address; either programmed into the unit or using DHCP.
Most networks use a DHCP server. If there is a PC on the network, You may be able to find out
whether a PC on the same network uses DCHP as follows:
• Go to Control Panel
• Select Network Connections
• Right click on Local Area Connection. Select Properties
• From the list, select Internet Protocol (TCP/IP), press Properties
If "Obtain an IP address automatically" is set, then DHCP is probably used. However, there may be an
alternative fixed IP address on the "Alternative Configuration" tab.
You can find out what IP address is being used by a PC at any time by:
• Go to Control Panel
• Select Network Connections
• Right click on Local Area Connection. Select Status
• Select the Support tab. The IP address is displayed
When using a fixed IP address, you must ensure that you use an IP address that is not being used by
any other device on the network. It is usual to keep the first three numbers of the IP address the same
as other devices and to change only the last number. For example, if you have a network consisting
of a PC (IP address 192.168.1.35) and two NL200s, you might give them addresses 192.168.1.201
and 192.168.1.202.
9-1
NL-200 Series Controller User Manual
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