Packets rate capacity, Ethernet/ip capacity tool – Rockwell Automation Ethernet Design Considerations Reference Manual User Manual
Page 69
Rockwell Automation Publication ENET-RM002C-EN-P - May 2013
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EtherNet/IP Protocol
Chapter 4
Packets Rate Capacity
Beginning with firmware revision 3.
x for ControlLogix EtherNet/IP
communication modules, packet rate capacity is increased.
EtherNet/IP Capacity Tool
The EtherNet/IP Capacity Tool is 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.
IMPORTANT
Connection size impacts a module’s increased packet rate capacity gained with
firmware revision 3.x or later.
Smaller connections are processed faster than larger connections. Larger
connections can affect the increased packet rate capacity obtained with
firmware revision 3.x or later. These type of applications use larger connections:
• Applications with rack-optimized connections
• Applications with Integrated Motion on the EtherNet/IP network
• Applications with large produce/consume tag arrays
Modules with firmware revision 3.x or later always have greater packet
rate capacity than modules with firmware revision 2.x or earlier in the same
application. Larger connections impact only how much greater the packet rate
capacity is with firmware revision 3.x or later.
IMPORTANT
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.