| 摘要 |
PURPOSE:To enable quick execution for suitable diagnosis and repair work, by concentrating a plurality of results of monitor data to one monitor and diagnosing the failure of data transfer device through the reference of all the data as the result of monitor. CONSTITUTION:Data transfer devices 1, 2, 3 are always monitored from monitors 7' and 11 respectively, and when both the monitors 7' and 11 detect failure, the data transfer devices 1, 2, 3 are regarded as failure, and if either one of the devices 7' and 11 only detects failure, the cause to failure can be regarded to exist in a monitored line. Thus, the maintenance personnel informed from the display section of the device 7' can start the diagnosis and repair of the devices 1, 2, 3 immediately to discriminate if the cause to failure resides in the data transfer devices or the line to be monitored. |
