JPS5936677U

JPS5936677U - remote monitoring control system

Info

Publication number: JPS5936677U
Application number: JP13180682U
Authority: JP
Inventors: 久松　伸夫; 敏行増田
Original assignee: 松下電工株式会社
Priority date: 1982-08-31
Filing date: 1982-08-31
Publication date: 1984-03-07

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図は従来例のブロック図、第２図は本考案の一実施
例のブロック図、第３図は同上の端末器の構成を示す回
路図、第４図は同上の伝送波形を示す図、第５図は同上
の副操作盤の構成を示すブロック図である。１は主操作盤、２は信号線、３は端末器、１０は端末論
理ＩＣ，ｌ（３は入力スイッチ群、１７は副操作盤論理
回路、Ａは副操作盤である。Fig. 1 is a block diagram of a conventional example, Fig. 2 is a block diagram of an embodiment of the present invention, Fig. 3 is a circuit diagram showing the configuration of the above terminal, and Fig. 4 is a diagram showing transmission waveforms of the above. , FIG. 5 is a block diagram showing the configuration of the sub-operation panel of the same. 1 is a main operation panel, 2 is a signal line, 3 is a terminal device, 10 is a terminal logic IC, l (3 is an input switch group, 17 is a sub-operation panel logic circuit, and A is a sub-operation panel).

Claims

[Scope of utility model registration request]

The main operation panel and multiple terminal devices are connected to each other via a pair of signal lines, and the main operation panel waits for an address signal consisting of multiple bits and a control data signal consisting of multiple bits to be returned to each terminal device. A signal in which long pulse signals are arranged in series is cyclically transmitted for each address. The control output means that generates a control output according to the control data signal and the signal line are short-circuited through an appropriate impedance during the period of the long pulse signal for waiting for the return, so that the monitoring signal consisting of a plurality of bits can be output as a return current. In a remote monitoring and control system that is equipped with a monitoring signal return means that sends back a monitoring signal to the main operation panel side, a group of input switches for connecting a sub-operation panel containing a number of terminal devices each having a different address to the signal line and inputting address signals and control data signals of arbitrary terminal devices into the sub-operation panel; A means for distributing and inputting the data inputted by the input switch group to each monitoring signal return means of a plurality of terminal devices in the sub-operation panel is provided, and address signals and control signals returned from the sub-operation panel to the main operation panel are provided. A remote monitoring control system that transmits data signals from the main operation panel to each terminal.