Ethernet/ip network overview – Rockwell Automation 1732E-OB8M8SR EtherNet/IP Dual Port 8-Point SOE Input and Scheduled Output Modules UM User Manual
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Rockwell Automation Publication 1732E-UM003B-EN-E - March 2014
Chapter 2 Module Overview and Features
EtherNet/IP
Network Overview
The modules incorporate embedded switch technology. They support Star, Tree,
Daisychain or Linear, and Ring network topologies.
• Star or Tree topologies can connect to either Port 1 or Port 2.
• Daisy Chain/Linear topologies will pass communications from Port 1 to 2,
or Port 2 to 1.
• Ring topology will pass communications from Port 1 to 2, or Port 2 to 1.
The 1732E-IB8M8SOER and 1732E-OB8M8SR modules support the
management of network traffic to ensure timely delivery of critical data, Quality
of Service (QoS) and Internet Group Management Protocol (IGMP) protocols
are supported.
LINK1
NET
MOD
X10
X100
X1
LINK2
45766
Functional Earth ground
(1)
M8 I/O connectors
Node address switches
EtherNet/IP D-Code
M12 connector
EtherNet/IP D-Code
M12 connector
M8 I/O connectors/
status indicators
Power status
indicator
Network status LED
Link 1 status LED
Link 2 status LED
Module status LED
Node address switches
Power connector
Power connector
(1)
Functional Earth grounds the I/O block’s EtherNet/IP communication circuitry which is designed to
mitigate the effect of noise on the network. It requires a solid earth ground connection, either through a
metal screw to a grounded metal panel or through a wire.