| 摘要 |
PURPOSE:To provide a sure and easy set function and a more suitable display function, by describing a system operating state with state transition and instructing the operation in the said timing to the operator. CONSTITUTION:An operator console 1 consists of a status memory 10 storing the present state, a STATUS transit device 11 inputting a transit request STATUS signal 12 from a CPU and performing status transition processing, a PBL controller 17 assembled at each switch PBL with lamp, and a bus line 20. The device 11 discriminates if transfer is possible based on the information of a status transition matrix table 5 stored in advance when the signal 12 is generated, and output a transit timing failure signal 13 to the CPU if transition is disable. On the other hand, if not, a STATUS transition signal 16 is outputted to the memory 10 to transit the status and a STATUS display selection signal 14 and a PATH display selecting signal are outputted to a status transition display 6 to renew the status display. |
