JPS58195333U

JPS58195333U - Digital signal output switching device in dual system system

Info

Publication number: JPS58195333U
Application number: JP9502382U
Authority: JP
Inventors: 稲葉　孝一
Original assignee: 三菱電機株式会社
Priority date: 1982-06-22
Filing date: 1982-06-22
Publication date: 1983-12-26

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 the drawing]

第１図は一般的な二重系システムにおけるディジタル出
力切替装置を示すブロック図、第２図は従来の出力切替
装置を示すシーケンス回路図、第３図は本考案の一実施
例によるシーケンス回路図である。　　　′ Ｓ・・・・・・切替信号、Ｘ・・・・・・切替リレー、
Ｘユ、Ｘｂ・・・・・・切替リレー接点、ａ工〜ａｎ・
・・・・・主系側ディジタル出力信号接点、ｂ工〜ｂｎ
・・・・・・従系側ディジタイ出力信号接点、Ｒ１〜Ｒ
，・・・・・・出力リレー、ｌ工、ｅ２・・・・・・電
源バス、１□８・・・・・・主系側電源バス、１１ｂ・
・・・・・従系側電源バス、Ｄ８１〜Ｄａｎ’・・・・
・主系側ダイオード、Ｄｂ１〜Ｄ５ｎ・・・・・・従系
側ダイオード、なお、図中、同一符号は同一、又は相当
部分を示す。Fig. 1 is a block diagram showing a digital output switching device in a general dual system system, Fig. 2 is a sequence circuit diagram showing a conventional output switching device, and Fig. 3 is a sequence circuit diagram according to an embodiment of the present invention. It is. 'S...Switching signal, X...Switching relay,
Xyu, Xb...Switching relay contact, a-an...
...Main system side digital output signal contact, b-bn
...Slave side digit tie output signal contact, R1~R
,... Output relay, l engineering, e2... Power bus, 1□8... Main system side power bus, 11b.
...Slave side power supply bus, D81~Dan'...
・Main system side diodes, Db1 to D5n...Slave system side diodes. In the drawings, the same reference numerals indicate the same or equivalent parts.

Claims

[Scope of utility model registration request]

(1) By switching the output between each digital output signal sent from the main controller and each digital output signal sent from the slave controller corresponding to this digital output signal, a signal is provided corresponding to each digital output signal. In a dual-system digital output switching device that excites and controls each of the output relays, the power supply that supplies excitation power to each of the output relays is divided into a main bus and a slave bus and connected to these power buses. A pair of switching relay contacts with opposing contact operations are interposed, and a digital output signal corresponding to each output relay is provided between the main bus and slave bus in which the switching relay contacts are interposed, and each of the output relays. Digital signal output switching in a dual system system characterized by having a configuration in which series bodies of main system and slave system digital signal contacts and backflow prevention diodes are respectively provided, which are closed when the signal is sent out. Device.

(2) A digital signal output switching device in a dual system system according to claim 1 of the utility model registration claim, in which each of the above output relays and each of the main system and slave system backflow prevention diodes are formed on one printed circuit board. .