Overloading a Rockwell controller with too many tasks and programs, or running tasks too quickly, can have disastrous consequences. In the worst cases, the controller can completely trip and shut down our process unexpectedly. In best-case scenarios, our tasks will not run as frequently as we would expect them to, which can lead to unexpected results and process conditions. Fortunately, RSLogix/Studio 5000 provides methods for monitoring and tuning the performance of the projects running on a controller.
In the next few sections, we will explore some of the available options for project optimization. Let's start with system overhead time slice.
System overhead time slice
System overhead time slice is a controller setting that allows the specification of the percentage of time dedicated to ongoing background tasks. These ongoing background tasks are also referred to as unscheduled communications and will always require a percentage...