User manual

84 Publication ENET-UM001I-EN-P - January 2010
Chapter 6 Control I/O
Direct Connections For I/O Modules
In this example, assume that each distributed I/O module is configured for a
direct connection to the controller.
If you have many modules, direct connections to each module may not be
feasible
because you could use up the number of connections and packets per
second supported by the module.
See Rack-optimized Connections For I/O Modules on
page 85 to conserve
connection use and network traffic.
EtherNet/IP Network
Controller With EtherNet/IP
Communication Module
EtherNet/IP Adapters
With I/O Modules
Digital I/O Modules Analog I/O Modules Digital I/O Modules
Switch
Example - System Connections
System Connections Amount
Controller to local EtherNet/IP communication module 0
Controller to EtherNet/IP adapter
Direct connection for digital I/O module
Direct connection for analog I/O module
4
2
Total connections used 6