| 摘要 |
PURPOSE:To realize the automatic test diagnosis of a diagnostic processor by providing a connection means which connects mutually plural diagnosing devices when a certain diagnosing device has a fault. CONSTITUTION:When both diagnostic processors 11 and 12 are working normally, the processor 11 controls a diagnostic interface 13 to perform the test diagnosis of an information processor 2-i. While the processor 12 controls a diagnostic interface 14 and performs the test diagnosis of an information processor 3-i. At this time of the processor 12, for instance, has a trouble and an abnormal state, the operation of the processor 12 is stopped. At the same time, the processor 11 controls both interfaces 13 and 14 via the control interfaces 111 and 112 to carry out the test diagnoses of both processors 2-i and 3-i. Furthermore the processor 11 performs the test diagnosis of the faulty processor 12 by the test diagnosing procedure programmed previously. |
