Rockwell-automation 1794-OB16D FLEX I/O Diagnostic Modules User Manual Instrukcja Użytkownika Strona 87

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Publication 1794-UM061A-EN-P - July 2006
Configure your Digital Module on an EtherNet/IP Network 85
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.
The following table calculates the connections in this example.
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.
Refer to Rack-optimized Connections For I/O Modules on page 86 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
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
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