| 摘要 |
PROBLEM TO BE SOLVED: To shorten a tact time and to improve accuracy and productivity of an overall control system.SOLUTION: A CPU module 122 includes a grouping part 172 for grouping input/output modules having equal refresh period, a schedule part 174 for distributing phase of the refresh period for each group so that refreshment timing is not biased, and a refreshment execution part 176 for refreshing the plurality of input/output modules based on the distributed phase. |
