Rockwell Automation 1761-NET-ENIW MicroLogix Ethernet Interface (ENI) User Manual - Manual (Page 44)

Publication 1761-UM006E-EN-P - August 2005
4-4 ENI/ENIW Configuration (Nodes 241 to 254)
Series B, C, and D Options
The latest 1761-NET-ENI/1761-NET-ENIW Configuration Utility
features the following options that apply to series B or later modules:
• CompactLogix Routing Checkbox – allows a Logix controller
connected to the ENI/ENIW to go online using RSLogix 5000 on
Ethernet.
• Always Checkbox – when this checkbox is selected, the
ENI/ENIW attempts to obtain the BOOTP IP address on every
power cycle. The Always option is only available when Obtain
via BOOTP has already been selected.
• Fallback Checkbox – when this checkbox is selected, the
ENI/ENIW attempts to obtain a BOOTP IP address on every
power cycle. If a response is received, the ENI/ENIW uses the
obtained address. If a response is not received, the ENI/ENIW
“falls back” to the previously assigned IP address. If an IP
address had not previously been assigned, the ENI/ENIW fault
LED continues to flash and no further Ethernet communication
takes place. The Fallback option is only available when Obtain
via BOOTP has already been selected.
• DHCP Checkbox – when this checkbox is selected, the
ENI/ENIW attempts to obtain the IP address from a DHCP server
on every power cycle. If no DHCP reply is received, then
ENI/ENIW fault LED continues to flash and no further Ethernet
communication takes place.
Series D Options
The Ethernet Speed/Duplex selection in the Configuration Utility
applies only to series D or later units. Select a forced speed and
duplex setting or select Auto Negotiate.
Save to ENI/ENIW RAM or ENI/ENIW ROM
You must save the configurations you have set. Click ENI/ENIW RAM
for temporary setups or ENI/ENIW ROM to permanently save your
settings. If you do not save the settings, they will revert to the last
saved settings (or the “out-of-box” if no settings were previously
saved).