| 摘要 |
PURPOSE:To reduce the burden of processing jobs and to enable the operator to grasp the failure state, by displaying the types of initial event, failure progressing state expected according to it, plant state sequentially after the production of failure, and the operation to be processed, to the operators. CONSTITUTION:The patterned signal of the state of a device 1 in normal system, and the signal from an initial event storage device 2 storing the pattern of the state of each device corresponding to the initial event, are fetched to the initial event comparison device 3 to compare the both. Further, the expected failure progress state is displayed 5 from the storage device 4 in the form of event tree. Further, the signal patterning the operating state of the protection system 6 to prevent the failure progressing and the signal from the failure state storage device 7 are fetched to the status grasp device 8 to decide in which state of the event tree the failure resides, and it is clearly displayed on the event tree on the display device 5. |
