task

What is 'task'? What does 'task' mean?

A unit of a user program the execution of which can be controlled with Task Control Instructions or interrupt conditions. The CS, CJ, CP, and NSJ-series PLCs support task programming. Programming ending in an END instruction can be assigned to a task. There are basically two types of task: 1) cyclic tasks, which are executed cyclically and controlled with the Task Control Instructions and 2) interrupt tasks (including I/O interrupt tasks, scheduled interrupt tasks, power OFF interrupt tasks, and external interrupt tasks), which are executed when the interrupt conditions are met.

Programmable Controllers