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这是一个在控制室里用监视盘上的电流表监视远处机器电流值的系统。因电流表是一个,而要监视电流值却有四个,所以安装在机嚣上的变流器 CT_1～CT_4是用监视盘上的转换开关 S_1按顺序切换并加以显示。这时变流器的切换信号便利用多路传输系统加以传输。这样,即使需要监视的电流值有所增加也不必增加传输线路,只要增设多路传输系统的收发部件,便很容易增加监视点。在监视盘上要根据切换的监视点数设置发送信号的
This is a system in the control room with a monitor on the ammeter to monitor remote machine current value of the system. Because the current meter is one, and there are four current values to be monitored, the converters CT_1 ~ CT_4 installed on the chime are switched and displayed in sequence by the change-over switch S_1 on the monitoring disc. In this case, the switching signal of the converter is transmitted using the multiplex transmission system. In this way, it is not necessary to increase the transmission line even if the current value to be monitored is increased, and it is easy to increase the monitoring point as long as the transmission and receiving unit of the multiplex transmission system is added. In the monitor plate to switch according to the number of monitoring points set to send signals