| 摘要 |
PURPOSE:To display an accurate operating state of a common equipment by securing such a constitution where the clock signal for display output of the common equipment to a programmable controller of the other side while each programmable controller of a relevant group is working. CONSTITUTION:If a stop signal of an A-system group is produced while A- system equipments A1-A3 and a common equipment C1 are working together with B-system equipments B1-B3 kept halted, an A-system interlocking signal 7 is supplied to a programmable controller PCB as a clock signal and the AND conditions of the display output of the PCB are not satisfied since the B system is not under an interlocking state. Then a display output signal 11 is locked by the signal 7 and a display output signal 6 of a PCA is turned into the flicker output owing to the A-system interlocking conditions. Thus a pilot lamp 18 for equipment C1 performs a flickering display so that the operating state of the equipment C1 is accurately displayed. |
