JPS5956888U

JPS5956888U - remote monitoring control system

Info

Publication number: JPS5956888U
Application number: JP14868982U
Authority: JP
Inventors: 久松　伸夫; 敏行増田
Original assignee: Matsushita Electric Works Ltd
Current assignee: Panasonic Electric Works Co Ltd
Priority date: 1982-09-30
Filing date: 1982-09-30
Publication date: 1984-04-13

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図は従来例のブロツク図、第２図は同上の要部ブロ
ック図、第３図は本考案の一実施例のブロック図、第４
図は同上の端末器の構成を示す回路図、第５図は同上の
伝送波形を示す図、第６図は同上の動作説明図である。゛　１は主操作盤、２は信号線、３は端末器、９は端末
論理ＩＣ，１３はフリップフロップ、Ｄ□〜Ｄ４は制御
出力端子、■１〜Ｉ、は監視入力端子である。１１１１−　　　　　“埼トナー一 −−１−−−−−Fig. 1 is a block diagram of a conventional example, Fig. 2 is a block diagram of the main parts of the same as above, Fig. 3 is a block diagram of an embodiment of the present invention, and Fig. 4 is a block diagram of an embodiment of the present invention.
FIG. 5 is a circuit diagram showing the configuration of the terminal device, FIG. 5 is a diagram showing transmission waveforms, and FIG. 6 is an explanatory diagram of the operation. 1 is a main operation panel, 2 is a signal line, 3 is a terminal device, 9 is a terminal logic IC, 13 is a flip-flop, D□ to D4 are control output terminals, and 1 to I are monitoring input terminals. 11 11- “Saito Toner 1--1-----

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 sends an address signal consisting of multiple bits to each terminal device, a control data signal consisting of multiple bits, and a return waiting signal. A signal in which long pulse signals are arranged in series is cyclically transmitted to each address signal, and each terminal device is equipped with an address judgment means for comparing the address signal on the signal line with its own address, and control data when the address signals match. A side control output means that generates a 1 or 0 control output corresponding to each bit of the signal in parallel for the same number of bits as the control data signal, and a signal line between the side control output means and the signal line during the period of the long pulse signal for waiting for return. In a remote monitoring and control system, each terminal device is provided with a monitoring signal return means for returning a monitoring signal consisting of the same number of bits as the control data signal to the main operation panel side as a return current by short-circuiting through an appropriate impedance. For each, each of the above control outputs is set as the respective set input,
A remote monitoring and control system is provided with 70 flip-flops whose number is the same as the number of control/output bits that are reset after the return of a monitoring signal is completed, and the output of each flip-flop is inputted as a monitoring signal to a monitoring signal return means.