| 摘要 |
PURPOSE:To attain the simplicity of the execution and the extension of an abnormality informing device system and to effectively inform by providing a means for outputting a detecting signal to a terminal equipment and a means for receiving the signal and informing an a normality and an abnormality in a monitor equipment. CONSTITUTION:When a user depresses the corresponding input button 21 to the terminal equipment 8, the monitor equipment 7 feeds a monitor request signal through a transmission path 9. An identification signal generating means 23 applies an identification number to this signal and precedently communicates with the controlling terminal equipment 10. The terminal equipment 8 returns the detecting signal of a sensor 12 to the monitor 7. In the monitor 7, a response within a constant time is decided in a judging part 22 to display an OK 19, an NG 20 and erase it after the constant time. At the time of no response, there is no display, which indicates the abnormality of the system. According to this constitution, it is not required to dispose a communication transmission path for every terminal equipment, so that it is useful for the formation and the extension of the system.
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