GE 90-30 PLC User Manual

Page 24

2-11

GFK-1084B

Chapter 2 Installing the Ethernet Interface

However, if you have no network administrator and a simple isolated network with no
gateways, you can use the following range of values for the assignment of local IP ad-
dresses:

3.0.0.1

First PLC

3.0.0.2

Second PLC

3.0.0.3

Third PLC

3.0.0.255

Logicmaster TCP or host

Also, on an isolated network, the Subnet Mask, Gateway IP address, and Name Server IP
address can all be 0.0.0.0. (The Name Server IP address is not currently used and is
reserved for future use.)

Note

If the isolated network is ever connected to another network, the IP
addresses 3.0.0.1 through 3.0.0.255 must not be used and the Subnet Mask
and Gateway IP address must be assigned by the Network Administrator.
The IP addresses must be assigned so that they are compatible with the
connected network. Refer to Appendix C for more information on
addressing.

See also the section “Determining If an IP Address Has Already Been
Used” in Procedure 4.

Optionally, after you have assigned the IP address, etc., press Page Down to display
the following screen.