| 摘要 |
An operating state management system having database, to collect and totalize the operating states of production equipment and circumstances under which types of trouble occur in the production equipment, creates a record set Q of records in a designated range of times (ta, tb) on the basis of an operating status table in which the state of the production equipment and the time at which there is a change in the state are linked is stored in the data base in advance, and creates a trouble table on the basis of the record set Q (step S61-S73) and totalizes downtime of the production equipment by type of trouble on the basis of the trouble table (step S74).
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