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Learning RSLogix 5000 Programming by Austin Scott

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Tuning a Logix controller

Logix provides methods for monitoring and tuning the performance of the projects running on a controller. In the next sections, we will explore some of the available options.

System overhead time slice

The system overhead time slice is a controller setting that allows the specification of the percentage of time dedicated to the ongoing background tasks. These on-going background tasks are also known as unscheduled communications and will always require a percentage of the controller's processing power.

Logix unscheduled communications include the following features:

  • Programming and device monitoring communication with Logix Designer / RSLogix
  • Service communication
  • Communication with the HMI devices
  • Controller to controller communication ...

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