User manual

Publication ENET-UM001I-EN-P - January 2010 89
Control I/O Chapter 6
4. From the Requested Packet Interval (RPI) menu, select the rate at which
you want data to be updated over a connection.
Only set the RPI to the rate the application requires.
5. Click OK.
Unlik
e EtherNet/IP modules, in Logix5000 controllers
, I/O values update at
an interval set via the project’s I/O configuration folder. The values update
asynchronously to the execution of logic. At the specified interval, the
controller updates a value independently from the execution of logic.
IMPORTANT
The RPI determines the number of packets per second
that the module will produce on a connection. Each
module can only produce a limited number of packets
per second. Exceeding this limit prevents the module
from opening more connections.