By default, the "TimerTickInterval" property of an EtherNet/IP session is set to 1ms which results in high CPU usage. Increasing the interval between the timer ticks will reduce CPU usage.This property can be changed through a property node. (Note: "TimerTickPreemption" must also be set to FALSE)
Make sure the TimerTickInterval is less that your fastest UDP otherwise you may experience connection issues. A good rule of thumb is at least half of the fastest UDP's period.
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