JPS5837248U

JPS5837248U - Data rewriting circuit

Info

Publication number: JPS5837248U
Application number: JP13097181U
Authority: JP
Inventors: 仲尾　誠
Original assignee: 株式会社日立製作所; 日立エンジニアリング株式会社
Priority date: 1981-09-04
Filing date: 1981-09-04
Publication date: 1983-03-10

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) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図は、従来の２ワード使用の遠方監視制御装置シス
テムのブロック図、第２図は、本考案の制御所側の２ワ
一ド伝送時のデータ書き替え回路である。１・・・ディジタル入力、２・・・ディジタル入力リレ
ー、３・・・走査回路、４・・・並直変換回路、５・・
・送信用信号伝送装置、ｉ・・・伝送路、７．・・・受
信用信号伝送装置、８・・・直並変換回路、９・・・１
次記憶回路、１０・・・表示記憶回路、１１・・・表示
器、１２・・・記憶回路、１３・・・アンド回路、１４
・・・アドレスｎのデータが正常に伝送されたという条
件、１５・・・アドレスｎ＋１のデータが正常に伝送さ
れたという条件、１６・・・アドレスｎのデータ、１７
・・・アドレスｎ−１−１のデータ。FIG. 1 is a block diagram of a conventional 2-word remote monitoring and control device system, and FIG. 2 is a data rewriting circuit at the control center of the present invention during 2-word transmission. 1... Digital input, 2... Digital input relay, 3... Scanning circuit, 4... Parallel to serial conversion circuit, 5...
- Transmission signal transmission device, i...transmission path, 7. ... Signal transmission device for reception, 8... Series-to-parallel conversion circuit, 9... 1
Next storage circuit, 10...Display storage circuit, 11...Display device, 12...Storage circuit, 13...AND circuit, 14
...Condition that the data at address n was transmitted normally, 15...Condition that the data at address n+1 was transmitted normally, 16...Data at address n, 17
...Data at address n-1-1.

Claims

[Scope of utility model registration request]

When transmitting using multiple words in a remote monitoring and control device, there is a means for storing a memory circuit on the control center side to memorize that words from address m to rn+n have been transmitted normally, and a means for storing that words from address m+n+l are normally transmitted. 1. A data rewriting circuit comprising: means for ANDing a condition transmitted to a signal; and means for rewriting data from address m to m+n+l using the signal.