Ethernet/ip modules in a control system – Rockwell Automation Ethernet Design Considerations Reference Manual User Manual
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Rockwell Automation Publication ENET-RM002C-EN-P - May 2013
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EtherNet/IP Overview
Chapter 1
EtherNet/IP Modules in a 
Control System
The following diagram shows how EtherNet/IP communication modules can fit 
into a control system.
In this example, the following actions can occur:
•
Controllers produce and consume tags with each other.
•
Controllers initiate MSG instructions to send/receive data or configure 
devices.
•
Controllers control I/O and drives.
•
Workstations can upload/download projects to the controllers.
•
Workstations can configure devices on the EtherNet/IP network.
Switch
1756-EN2T
1756 I/O Modules
1794-AENT
 1794 I/O Modules
Workstation
1734-AENT 
1734 I/O Modules
PowerFlex® 
Drive
1783-ETAP
Workstation
1783-ETAP
1756-EN2TR
1756 I/O Modules
1769-L18ERM-BB1B Control System
1769-L33ERM Control System
PanelView™ Plus Terminal Connected 
Via a 1783-ETAP EtherNet/IP Tap
1794-AENTR FLEX™ I/O Adapter
1734-AENTR POINT I/O™ Adapter 
with POINT I/O Modules
Kinetix 6500 Drives 
with Motors
Kinetix 350 Drive 
with Motor