| 摘要 |
<p>PROBLEM TO BE SOLVED: To solve the problem that it is difficult to accurately grasp the opera tion state of an old type of manufacturing facilities having no interface for communication like computer-controlled manufacturing facilities. SOLUTION: An operation time display part 8 is added to the manufacturing facilities 1 equipped with a signal lamp 2 which illuminates in different light emission colors to display the operation state, and then the operation state and non-operation state can be known even the old type of manufacturing facilities.</p> |
