| 摘要 |
PROBLEM TO BE SOLVED: To provide a controller capable of accurately calculating the residual time of a task, and a task residual time calculation method in the controller.SOLUTION: A task A and a task B respectively notify a residual time calculation unit when passing through a passing point. The residual time calculation unit subtracts the longest time to the passing point from the longest residual time before the completion of the task (the longest residual time from task start to completion at first), and updates the longest residual time before the task completion by a subtraction result. At the point (a) of time, for the longest time "9" from the start to the completion of the task A, the longest times "1.5", "2.0", "2.0" and "1.5" to respective passing points a1-a4 are subtracted, and the longest residual time is updated to "2". |
