Rockwell Automation Publication 5069-UM002A-EN-P - January 2019 273
Troubleshoot the Controller Chapter 11
Immediate Output Instructions Issued at High Rate
CompactLogix 5480 controllers can issue Immediate Output (IOT)
instructions faster than I/O modules can react to them. We recommend that
you program IOT instructions so that they are sent at a rate appropriate for the
I/O module and the corresponding physical devices.
Integrated Motion On an EtherNet/IP Network Traffic
Priority Status
When you use a Stratix® managed switch to change the network
communication rate from 1 Gbps to 100 Mbps, the system can fail to prioritize
the Integrated Motion On an EtherNet/IP network communication higher
than standard I/O communication.
For more information on managed switches in general, see the EtherNet/IP
Network section of the product directory accessible at this address:
http://ab.rockwellautomation.com/networks-and-communications/ethernet-
ip-network.
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