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Configuring the Ethernet Settings of the Controller

Last Modified: June 10, 2021

Increase the performance of your real-time controller by using line interrupt packet detection.

Most NI Real-Time targets offer three options for packet detection: Line Interrupt, Polling, and Message Signal Interrupt. Line Interrupt provides the fastest performance as the device driver gets immediately notified when the target receives data.
spd-note-note
Note  

Line Interrupt introduces the most jitter of the options.

  1. Open NI MAX.
  2. In the Packet Detection setting of the controller, select Line Interrupt.
    spd-note-note
    Note  

    If Line Interrupt is not available, select Polling and change the Polling Interval to 1 millisecond. Polling at a high rate provides high performance while introducing less jitter than interrupt, but increases CPU utilization.


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