JPS5786971A - Doubled computer system - Google Patents

Doubled computer system

Info

Publication number
JPS5786971A
JPS5786971A JP55163047A JP16304780A JPS5786971A JP S5786971 A JPS5786971 A JP S5786971A JP 55163047 A JP55163047 A JP 55163047A JP 16304780 A JP16304780 A JP 16304780A JP S5786971 A JPS5786971 A JP S5786971A
Authority
JP
Japan
Prior art keywords
controller
computers
input
output
signal
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
JP55163047A
Other languages
Japanese (ja)
Other versions
JPS61664B2 (en
Inventor
Toshio Ogawa
So Akai
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.)
Yokogawa Electric Corp
Original Assignee
Yokogawa Electric Corp
Yokogawa Hokushin Electric Corp
Yokogawa Electric Works 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 Yokogawa Electric Corp, Yokogawa Hokushin Electric Corp, Yokogawa Electric Works Ltd filed Critical Yokogawa Electric Corp
Priority to JP55163047A priority Critical patent/JPS5786971A/en
Publication of JPS5786971A publication Critical patent/JPS5786971A/en
Publication of JPS61664B2 publication Critical patent/JPS61664B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
    • G06F13/38—Information transfer, e.g. on bus
    • G06F13/40—Bus structure
    • G06F13/4004—Coupling between buses
    • G06F13/4022—Coupling between buses using switching circuits, e.g. switching matrix, connection or expansion network

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Mathematical Physics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Hardware Redundancy (AREA)
  • Multi Processors (AREA)

Abstract

PURPOSE:To improve reliability by repairing a faulty doubling controller without stopping a system by connecting the input and output buses of two computers together on wired OR basis and by providing the doubling controller and manual changeover switches. CONSTITUTION:Two computers 1 and 2 have input and output buses 51 and 52 connected to an input and output bus 53 on wired OR basis, and a doubling controller 3 outputs a selective permit signal for the use of the input and output buses to the computers 1 and 2, and monitors the operation state of one computer in actual operation while diagnosing itself. On a path for the output signal of this controller 3, manual changeover switches 41 and 42 are provided to transfer the output signal of the controller 3 to the two computers 1 and 2 as it is and to supply the selective permit signal for the use of the input and output buses, independent of the output signal of the controller 3, to the computers 1 and 2.
JP55163047A 1980-11-19 1980-11-19 Doubled computer system Granted JPS5786971A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55163047A JPS5786971A (en) 1980-11-19 1980-11-19 Doubled computer system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55163047A JPS5786971A (en) 1980-11-19 1980-11-19 Doubled computer system

Publications (2)

Publication Number Publication Date
JPS5786971A true JPS5786971A (en) 1982-05-31
JPS61664B2 JPS61664B2 (en) 1986-01-10

Family

ID=15766163

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55163047A Granted JPS5786971A (en) 1980-11-19 1980-11-19 Doubled computer system

Country Status (1)

Country Link
JP (1) JPS5786971A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01120601A (en) * 1987-11-05 1989-05-12 Honda Motor Co Ltd Controller using two central processing unit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01120601A (en) * 1987-11-05 1989-05-12 Honda Motor Co Ltd Controller using two central processing unit

Also Published As

Publication number Publication date
JPS61664B2 (en) 1986-01-10

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