[go: up one dir, main page]
More Web Proxy on the site http://driver.im/

JPS5479529A - Circulating information transmission system - Google Patents

Circulating information transmission system

Info

Publication number
JPS5479529A
JPS5479529A JP14678477A JP14678477A JPS5479529A JP S5479529 A JPS5479529 A JP S5479529A JP 14678477 A JP14678477 A JP 14678477A JP 14678477 A JP14678477 A JP 14678477A JP S5479529 A JPS5479529 A JP S5479529A
Authority
JP
Japan
Prior art keywords
cpu11
stations
information transmission
circuits
transmission system
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP14678477A
Other languages
Japanese (ja)
Inventor
Hiroshi Tanaka
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP14678477A priority Critical patent/JPS5479529A/en
Publication of JPS5479529A publication Critical patent/JPS5479529A/en
Pending legal-status Critical Current

Links

Landscapes

  • Small-Scale Networks (AREA)

Abstract

PURPOSE: To improve the reliability of a system with the break-down of the entire system evaded when the master station gets into trouble, by enabling the system to recover its function through backup control immediately and by disconnecting the troubling master station from the system by an electronic insulating circuit.
CONSTITUTION: This system is provided with CPU11 which exercises the management of the entire system, master stations 131 and 132 which interpose in circulating information transmission lines L1 and L2, and the 1st and 2nd electronic insulating circuits 151 and 152 provided corresponding to stations 131 and 132. In addition, the 1st and 2nd direct memory access channels 121 and 122 connected to CPU11 are provided, CPU11 is connected to stations 131 and 132 via channels 121 and 122 and circuits 151 and 152, and CPU11 is enabled to transfer selectively data with stations 131 and 132.
COPYRIGHT: (C)1979,JPO&Japio
JP14678477A 1977-12-07 1977-12-07 Circulating information transmission system Pending JPS5479529A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14678477A JPS5479529A (en) 1977-12-07 1977-12-07 Circulating information transmission system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14678477A JPS5479529A (en) 1977-12-07 1977-12-07 Circulating information transmission system

Publications (1)

Publication Number Publication Date
JPS5479529A true JPS5479529A (en) 1979-06-25

Family

ID=15415448

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14678477A Pending JPS5479529A (en) 1977-12-07 1977-12-07 Circulating information transmission system

Country Status (1)

Country Link
JP (1) JPS5479529A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60143045A (en) * 1983-10-07 1985-07-29 エセツクス・グル−プ・インコ−ポレイテツド Series data communication system
JPS6251335A (en) * 1985-08-30 1987-03-06 Hitachi Ltd Control system for duplicated constitution of station
JP2010510741A (en) * 2006-11-27 2010-04-02 ベックホフ オートメーション ゲーエムベーハー Communication system having master / slave structure

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60143045A (en) * 1983-10-07 1985-07-29 エセツクス・グル−プ・インコ−ポレイテツド Series data communication system
JPS6251335A (en) * 1985-08-30 1987-03-06 Hitachi Ltd Control system for duplicated constitution of station
JP2010510741A (en) * 2006-11-27 2010-04-02 ベックホフ オートメーション ゲーエムベーハー Communication system having master / slave structure
US8531942B2 (en) 2006-11-27 2013-09-10 Beckhoff Automation Gmbh Communication system having a master/slave structure

Similar Documents

Publication Publication Date Title
FI865248A0 (en) data Transfer device
JPS55109042A (en) Selective individual calling system
JPS53134304A (en) Automatic telephone exchange system
JPS5792948A (en) Loop data transmission system
JPS5479529A (en) Circulating information transmission system
JPS5476034A (en) Bus data transfer system
ES8302983A1 (en) Telephone exchange
JPS5371537A (en) Information processor
JPS52149917A (en) Electronic equipment having lock mechanism for information input method
JPS5479528A (en) Circulating information transmission system
JPS53105947A (en) Data transfer system by bank switching of memory
JPS5470742A (en) Data bus control system
JPS5471532A (en) Data way system
JPS52135220A (en) Information input system of electronic computer
JPS55107358A (en) Data transmission system
JPS5697121A (en) Bus control system
JPS5559572A (en) Computer network structure system
JPS56122539A (en) System switching method
JPS5776957A (en) Communication terminal additional device
JPS5368949A (en) Initial value set system
JPS5685133A (en) Device number setting system
JPS5476032A (en) Communication control system
JPS5488749A (en) Information processor
JPS5593343A (en) Multi-frame synchronizing system
JPS5385130A (en) Interface bus control system