| 摘要 |
PURPOSE:To make it possible to send fault information of a channel unit back to a central precessor rapidly by giving an information receiving distributor a function of fault information display for each channel unit. CONSTITUTION:Fault information from each channel unit is inputted from fault information line 36 all the time and displayed by channel unit fault display circuit 6. Fault information from circuit 6 is inputted to informatuon returning control circuit 7 and selective gate circuit 5. Sent-back information from each channel unit is inputted to circuit 5, but at this time, circuit 7 decides upon which line, answer information line 29, information distributor return informatuon line 33 or channel unit fault display information line 34, answer information to an external device is selected from and then sends selective signal 32 to circuit 5. Circuit 5 selects an input and supplies center unit CC with one of answer information and fault information from each channel unit, and information obtained by partially adding information generated in the information receiving distributor to the answer information. |
