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US 2017/0068234 A1Published application
Controller and control system
AssigneeOMRON Corporation
InventorsKoji YAOITA, Yoshitaka TAKEUCHI
Life of this patent
Estimating the term…
Abstract
A controller continues to operate in a stable manner after program modification. A controller repeatedly executes a task A and a task B in cycles. The controller includes a RAM and a task control program. The RAM stores a fixed time set longer than an actual execution time of the task A as an execution time for the task A. The task control program executes the tasks A and B, and executes the task A by using the fixed time.
Claims11
A controller for repeatedly executing two or more types of tasks in cycles, the controller comprising:
- a storage unit storing, as an execution time of at least one of the two or more types of tasks, a fixed time longer than an actual execution time of the at least one type of task;
- and
- a task control unit configured to execute the two or more types of tasks, the task control unit being configured to execute the at least one type of task by using the fixed time.
A controller for repeatedly executing a task, the controller comprising:
- a storage unit storing, as an execution time of at least one type of processing assigned to the task, a fixed time longer than an actual execution time of the processing;
- and
- a task control unit configured to execute the task, the task control unit being configured to execute the at least one type of processing by using the fixed time.
Dependencies are inferred from the claim text.