JPS53942A - Double loop system back-up method - Google Patents

Double loop system back-up method

Info

Publication number
JPS53942A
JPS53942A JP7432876A JP7432876A JPS53942A JP S53942 A JPS53942 A JP S53942A JP 7432876 A JP7432876 A JP 7432876A JP 7432876 A JP7432876 A JP 7432876A JP S53942 A JPS53942 A JP S53942A
Authority
JP
Japan
Prior art keywords
loop system
double loop
system back
interposing
enabling
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.)
Granted
Application number
JP7432876A
Other languages
Japanese (ja)
Other versions
JPS579542B2 (en
Inventor
Takeshi Nakano
Toshiyuki Ide
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP7432876A priority Critical patent/JPS53942A/en
Publication of JPS53942A publication Critical patent/JPS53942A/en
Publication of JPS579542B2 publication Critical patent/JPS579542B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Hardware Redundancy (AREA)
  • Multi Processors (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)
  • Small-Scale Networks (AREA)

Abstract

PURPOSE: To constitute a highly reliable data transmission by interposing a command to a part of a data frame thereby enabling an efficient line disconnection and a control for the assembling condition and system constitution.
COPYRIGHT: (C)1978,JPO&Japio
JP7432876A 1976-06-25 1976-06-25 Double loop system back-up method Granted JPS53942A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7432876A JPS53942A (en) 1976-06-25 1976-06-25 Double loop system back-up method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7432876A JPS53942A (en) 1976-06-25 1976-06-25 Double loop system back-up method

Publications (2)

Publication Number Publication Date
JPS53942A true JPS53942A (en) 1978-01-07
JPS579542B2 JPS579542B2 (en) 1982-02-22

Family

ID=13543927

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7432876A Granted JPS53942A (en) 1976-06-25 1976-06-25 Double loop system back-up method

Country Status (1)

Country Link
JP (1) JPS53942A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54140436A (en) * 1978-04-24 1979-10-31 Oki Electric Ind Co Ltd Duplicating switch system for composite processor system
JPS55124825A (en) * 1979-03-20 1980-09-26 Nec Corp Bus control unit
JPS5613854A (en) * 1979-07-13 1981-02-10 Hitachi Ltd Double loop switching system

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5022505A (en) * 1973-05-30 1975-03-11
JPS5177017A (en) * 1974-12-27 1976-07-03 Fujitsu Ltd DEETADENSOROKIRIKAE HOSHIKI

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5022505A (en) * 1973-05-30 1975-03-11
JPS5177017A (en) * 1974-12-27 1976-07-03 Fujitsu Ltd DEETADENSOROKIRIKAE HOSHIKI

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54140436A (en) * 1978-04-24 1979-10-31 Oki Electric Ind Co Ltd Duplicating switch system for composite processor system
JPS55124825A (en) * 1979-03-20 1980-09-26 Nec Corp Bus control unit
JPS5613854A (en) * 1979-07-13 1981-02-10 Hitachi Ltd Double loop switching system

Also Published As

Publication number Publication date
JPS579542B2 (en) 1982-02-22

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