Rockwell Automation 1747-L55x,D174710.4 SLC 500 Ethernet - Manual (Page 40)

4–10 Communicating on the Ethernet Network
Publication 1747-10.4
Configure subnet masks and gateways using the Ethernet channel 1
configuration screen:
Important: If BOOTP is enabled, you can’t change any of the
advanced Ethernet communications characteristics.
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.
If you are Then See page
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.
4–11
using BOOTP to configure
channel 1 and have a network
with subnets
•
be sure BOOTP is enabled
•
configure the BOOTPTAB file to include the
subnet mask(s) and gateway address(es)
4–12
Using Subnet Masks and
Gateways