JPH0124398B2 - - Google Patents

Info

Publication number
JPH0124398B2
JPH0124398B2 JP56000348A JP34881A JPH0124398B2 JP H0124398 B2 JPH0124398 B2 JP H0124398B2 JP 56000348 A JP56000348 A JP 56000348A JP 34881 A JP34881 A JP 34881A JP H0124398 B2 JPH0124398 B2 JP H0124398B2
Authority
JP
Japan
Prior art keywords
station
communication
control
circuit
diagnosis
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.)
Expired
Application number
JP56000348A
Other languages
English (en)
Japanese (ja)
Other versions
JPS57114901A (en
Inventor
Norihiko Sugimoto
Kanman Hamada
Ikuro Masuda
Jinichi Sakurai
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 JP34881A priority Critical patent/JPS57114901A/ja
Priority to US06/335,689 priority patent/US4500951A/en
Publication of JPS57114901A publication Critical patent/JPS57114901A/ja
Publication of JPH0124398B2 publication Critical patent/JPH0124398B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/22—Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B9/00—Safety arrangements
    • G05B9/02—Safety arrangements electric
    • G05B9/03—Safety arrangements electric with multiple-channel loop, i.e. redundant control systems
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
    • G06F11/16—Error detection or correction of the data by redundancy in hardware
    • G06F11/20—Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements
    • G06F11/202—Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements where processing functionality is redundant
    • G06F11/2023—Failover techniques
    • G06F11/2033—Failover techniques switching over of hardware resources

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Quality & Reliability (AREA)
  • Computer Hardware Design (AREA)
  • Automation & Control Theory (AREA)
  • Safety Devices In Control Systems (AREA)
  • Small-Scale Networks (AREA)
  • Selective Calling Equipment (AREA)
JP34881A 1981-01-07 1981-01-07 Plant controller Granted JPS57114901A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP34881A JPS57114901A (en) 1981-01-07 1981-01-07 Plant controller
US06/335,689 US4500951A (en) 1981-01-07 1981-12-30 Plant control system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP34881A JPS57114901A (en) 1981-01-07 1981-01-07 Plant controller

Publications (2)

Publication Number Publication Date
JPS57114901A JPS57114901A (en) 1982-07-17
JPH0124398B2 true JPH0124398B2 (en]) 1989-05-11

Family

ID=11471341

Family Applications (1)

Application Number Title Priority Date Filing Date
JP34881A Granted JPS57114901A (en) 1981-01-07 1981-01-07 Plant controller

Country Status (1)

Country Link
JP (1) JPS57114901A (en])

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03114900U (en]) * 1990-03-08 1991-11-26

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4607256A (en) * 1983-10-07 1986-08-19 Honeywell, Inc. Plant management system
JPS62182802A (ja) * 1986-02-05 1987-08-11 Nec Corp 障害対応プロセス制御装置
JP2554268B2 (ja) * 1988-05-02 1996-11-13 三菱電機株式会社 計算機分散システム
JP2016091252A (ja) * 2014-11-04 2016-05-23 Ｎｅｃスペーステクノロジー株式会社 Ｉｅｅｅ１３９４インターフェース回路

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5329463B2 (en]) * 1973-10-03 1978-08-21
JPS5819120B2 (ja) * 1976-05-17 1983-04-16 株式会社東芝 ル−プ状デ−タ伝送装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03114900U (en]) * 1990-03-08 1991-11-26

Also Published As

Publication number Publication date
JPS57114901A (en) 1982-07-17

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