| 摘要 |
PURPOSE:To attain a highly general-purpose system for decision of a faulty area with low cost by collating the correspondence between an action signal and a state detecting signal with the stored data for each controlled system when a fault is produced for decision of the fault. CONSTITUTION:The correspondence of variation between the action signal of a controlled system 2 and the state detecting signal of a detector 3 is first stored in a memory 6 in a normal action mode. Then the generation of a fault is first monitored when an automatic continuous operation is started. This operation is discontinued in case a cycle time-over state is produced owing to some fault. Then the correspondence between the action signal and the state detecting signal is checked for each controlled system 2 and then collated with the stored data. When a correspondence having no coincidence with the stored data is detected, it is decided that a fault occurs to the combination between the controlled system 2 and the detector 3. This decision is displayed at a display device 4. |
