| 摘要 |
PURPOSE:To suppress the intrusion of disturbance from the other diagnosed unit by allowing a first switching means in diagnostic paths connecting the diagnosed unit and a remote control part by one to one to turn on/off. CONSTITUTION:A diagnostic processor 1 sets '0' in FF 212 through a diagnosis execution control part 211 and turns off all port circuits 214-217. Thus, all the diagnostic paths between the diagnosis execution control part 211 and a storage control unit 22, a main storage device 3, an input/output processor 4 and an operation processor 5 are invalidated. When the diagnosis execution control part 211 is accessed through the diagnostic path in such a state, influence by disturbance is never affected. |
