Rockwell Automation Ethernet Design Considerations Reference Manual - Manual (Page 79)

Rockwell Automation Publication ENET-RM002C-EN-P - May 2013 79
Chapter
5
Predict System Performance
This chapter describes how to predict the performance of your EtherNet/IP
network-based control system and how to enhance that performance
Topic Page
System Prediction Goals 80
Performance Calculations 83
Example: Predict System Performance 90
IMPORTANT This chapter explains how to calculate system performance with data from
your system in specific equations. However, you can also use the EtherNet/IP
Capacity Tool, an online tool, to predict system performance.
The EtherNet/IP Capacity Tool and the IAB Tool are intended to help you in the
initial layout of your EtherNet/IP network by calculating resources, for
example, connections, packet rate capacity, used by a proposed network.
Download the EtherNet/IP Capacity Tool at the Integrated Architecture Tools
website:
http://www.rockwellautomation.com/solutions/
integratedarchitecture/resources3.html#enetpredict.
The EtherNet/IP Capacity Tool calculates a rough estimate of the packet rate
capacity. Packet rate capacity varies depending on the specific conditions of
each application.
For a more detailed analysis of a proposed network, use RSNetWorx for
EtherNet/IP software.