| 摘要 |
<p>PURPOSE:To perform the connection confirming test of an interface, by connecting a display device to display the existence of conduction, to a pin which comes in contact with the input/output terminal of a control input/break signal, and connecting the display device to display the state of a facility, to the pin which comes in contact with the input/output terminal of a state signal. CONSTITUTION:When a facility 3 to be supervised and controlled is operated normally, the facility 3 to be supervised and controlled closes a state confirmation contact 27. If the facility 3 to he supervised and controlled, and the facility state signal conductor l4 of a telemeter slave station 2 are connected correctly, short-circuit between a facility state signal pin T2 brought into contact with the input/output terminal t2 of the telemeter slave station 2, and a common pin Co, is produced by the state confirming contact 27, and a facility state display device 44 having a light emitting diode D2, is lightened, thereby, the operation of the facility 3 to be supervised and controlled can be confirmed. If the facility state signal conductor l4 is not connected correctly, no emitting diode D2 of the facility state display instrument 44 is lightened. In this way, it is possible to confirm the connection of the interface between the terminal equipment of a remote supervisory and controlling equipment, and the facility to be supervised and controlled.</p> |
