Rockwell Automation 1766-Lxxxx MicroLogix 1400 Programmable Controllers User Manual - Manual (Page 380)

340 Rockwell Automation Publication 1766-UM001H-EN-P - May 2014
Appendix G Connecting to Networks via Ethernet Interface
Using Subnet Masks and
Gateways Configure subnet masks and gateways using the Ethernet channel 1 configuration
screen.
If your network is divided into subnetworks that use gateways or routers, you
must indicate the following information when configuring channel 1:
• subnet mask
• gateway address
A
subnet mask is a filter that a node applies to IP addresses to determine if an
address is on the local subnet or on another subnet. If an address is located on
another subnetwork, messages are routed through a local gateway to be
transferred to the destination subnetwork.
If your network is not divided into subnets, then leave the subnet mask field at
the default.
IMPORTANT If BOOTP is enabled, you can’t change any of the advanced Ethernet
communications characteristics.
If you are Then
manually configuring channel 1 and
have a network with subnets • be sure the BOOTP enable field is disabled
• use your programming software to enter the subnet
mask and gateway address.
using BOOTP to configure channel 1
and have a network with subnets • be sure BOOTP is enabled
• include the subnet mask(s) and gateway
address(es)