58 Rockwell Automation Publication 1756-RM100F-EN-P - October 2018
Chapter 3 Replacement Considerations with CompactLogix and Compact GuardLogix Systems
Project Size
The Logix Designer application uses the .ACD file format type with controller
projects. The project file size does not reflect the size of your project that
downloads to the controller. The .ACD file contains multiple components.
Not all components are downloaded to the controller.
Configure the Controller
You must consider the best way to use controller resources when
CompactLogix controllers communicate over an EtherNet/IP network. There
are limitations regarding how much EtherNet/IP communication the
controller supports.
Consider the following:
•Connections
•Ethernet Nodes
Connections Overview
A Logix 5000™ controller provides connection resources whenever
communications are established between two devices.
Connections are used when the system contains the following conditions
or activities:
• I/O modules, communication modules, and adapters are present in the
I/O configuration of the user project
• Produced or Consumed tags are configured in the user project
• Connected Messages are executed in the user application
• External devices, programming terminals, or HMIs communicate with
the controller
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