| 摘要 |
PURPOSE:To prevent the occurrence of faults by diagnosing with remote control all terminal equipments connected to a host device through this host device. CONSTITUTION:A host device 1 stores a diagnostic program 1a and then transmits this program to the terminal equipments 3-5 via a communication circuit 2. Then the device 1 transmits a diagnostic command 1b to the equipment 3 requiring a diagnosis. Thus the equipment 3 carries out a program 1a that is precedently received and stored. When the execution of the program 1a is over, the equipment 3 sends a diagnostic response 1c to the device 1. Thus the device 1 analyzes the received response 1c and diagnoses the presence or absence of abnormality and the contents of the abnormality if exists. As a result, the occurrence of faults can be prevented. |
