JPS58127777U

JPS58127777U - information transmission device

Info

Publication number: JPS58127777U
Application number: JP2420882U
Authority: JP
Inventors: 伸一山口; 俊三松浦
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: 1982-02-24
Filing date: 1982-02-24
Publication date: 1983-08-30

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 drawings]

第１図は従来の状変優先伝送による情報伝送方式の伝送
例図、第２図は本考案を実現可能とした装置構成ブロッ
ク図、第３図、第６図および第７　　　図は本考案によ
る情報伝送方式の伝送例図、第４図は入力プログラムを
示す概略フローチャート、第５図は送信プログラムを示
す概略フローチャートである。１・・・親局、２・・・子局、５・・・データバス、１
０・・・信号伝送装置、１１・・・信号入出力装置、１
４・・・ＲＡＭ、１５・・・マイクロコンピュータ、１
６・・・ＲＯＭ、１７・・・入力装置、２０・・・伝送
路、３０・・・データ処理部。Figure 1 is a transmission example diagram of the conventional information transmission method using status priority transmission, Figure 2 is a block diagram of the equipment configuration that makes the present invention possible, and Figures 3, 6, and 7 are based on the present invention. FIG. 4 is a schematic flowchart showing an input program, and FIG. 5 is a schematic flowchart showing a transmission program. 1... Master station, 2... Slave station, 5... Data bus, 1
0...Signal transmission device, 11...Signal input/output device, 1
4...RAM, 15...Microcomputer, 1
6... ROM, 17... Input device, 20... Transmission line, 30... Data processing unit.

Claims

[Scope of utility model registration request]

In an information transmission system in which a monitored control station is a slave station, a supervisory control station is a master station, and information is transmitted between them in a word structure via a transmission path, an information word whose state has changed in the slave station is transmitted to another word. A means for interrupting the word currently being transmitted when transmitting it to the master station with priority over the previous transmission, and a means for returning and transmitting the word next to the word currently being transmitted that was interrupted due to the interrupt. An information transmission device comprising: means for restarting.