| 摘要 |
PURPOSE:To accurately grasp situation before and after a trouble, and easily investigate the cause and repair in a short time. CONSTITUTION:The following are installed, an operation state data holding part 1 which collects and holds data about the operation state, a data indication part 2 which indicates the period, the kind, etc., of necessary data at the time of maintenance, a service data forming part 3 which takes out data from the part 1 and forms data indicated by the part 2, and a service data outputting part 4 which outputs formed service data. Thereby, when a trouble has occurred, the generation state of the trouble can be accurately grasped without observing the state before and after the trouble generation, so that cause study and repair of the trouble are easily enabled. |
