Rockwell Automation 1785-Lxxx Enhanced and Ethernet PLC-5 Programmable Controllers - Manual (Page 183)

Publication 1785-UM012D-EN-P - July 2005
Communicating with Devices on an Ethernet Network 11-9
Using Advanced
Ethernet Functions Configure the following advanced communication characteristics using the
Ethernet channel 2 configuration screen:
• broadcast address
• subnet mask
• gateway address
Using Broadcast Addressing
The broadcast address is part of the IP protocol used by a host to send
messages to every IP address on the link. This field in the channel 2
configuration screen identifies the address on which the module will receive
broadcast messages sent by a host.
If You are Using See Page
Broadcast addressing 11-9
Subnet masks and gateways 11-11
IMPORTANT
If BOOTP is enabled, you can’t change any of the
advanced Ethernet communications characteristics.
IMPORTANT
The broadcast address is used only for the reception of
messages. When used in the context of Ethernet
addressing, the broadcast function does not refer to
ladder-logic messaging.
This function does not allow for sending one message to
multiple PLC-5E controllers at the same time.