Series c enhancements, Series d enhancements, Ethernet networks – Rockwell Automation 1761-NET-ENIW MicroLogix Ethernet Interface (ENI) User Manual User Manual
Page 20: Basic ethernet topology -8, Basic ethernet topology
Publication 1761-UM006E-EN-P - August 2005
1-8 Product Overview
Series C Enhancements
The 1761-NET-ENI/ENIW series C features the following
enhancements:
• 10/100-Base-T Ethernet port that auto-negotiates between
10 Megabits per second and 100 Megabits per second, either
half-duplex or full-duplex.
• increased temperature range up to 60°C (140°F)
• increased messaging performance
Series D Enhancements
The ENI/ENIW series D features the following enhancements:
• Ability to configure the ENI/ENIW over Ethernet
• Email user authentication for open mail servers
• Ability to force 10 Mbps or 100 Mbps and half-duplex or
full-duplex Ethernet configuration
• Diagnostic web-page for Ethernet connections in use
• Revised web-page formats for ENIW
Ethernet Networks
Basic Ethernet Topology
The ENI/ENIW Ethernet connectors conform to ISO/IEC 8802-3 STD
802.3 and utilizes 10/100 Base-T media. Connections are made directly
from the ENI/ENIW to an Ethernet switch. The network setup is
simple and cost effective. Typical network topology is pictured below.
Ethernet
Switch
to PC Ethernet Card or
other Ethernet Device
to ENI or ENIW
RJ45 connectors on
both ends of cable
(10/100 Base-T)