JPS56114009A - Fault diagnosing method of digital controller - Google Patents

Fault diagnosing method of digital controller

Info

Publication number
JPS56114009A
JPS56114009A JP1667380A JP1667380A JPS56114009A JP S56114009 A JPS56114009 A JP S56114009A JP 1667380 A JP1667380 A JP 1667380A JP 1667380 A JP1667380 A JP 1667380A JP S56114009 A JPS56114009 A JP S56114009A
Authority
JP
Japan
Prior art keywords
fault
computer
operation amount
microcomputer
decided
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
JP1667380A
Other languages
Japanese (ja)
Inventor
Tsutomu Omae
Toshihiko Matsuda
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 JP1667380A priority Critical patent/JPS56114009A/en
Publication of JPS56114009A publication Critical patent/JPS56114009A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Quality & Reliability (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Test And Diagnosis Of Digital Computers (AREA)
  • Testing And Monitoring For Control Systems (AREA)

Abstract

PURPOSE:To decide a fault of a microcomputer, by storing and utilizing the target value, the feedback amount, the operation amount and the control arithmetic result, respectively. CONSTITUTION:The microcomputer 1 fetches the target value and the feedback amount with a sampling cycle and then calculates the operation amount to actuate the control object 2. Then the computer 1 stores these data within a fixed time into the storage device 5. In such conditions, the computer 1 stops the occurrence of operation amount in case the fault detector 4 detects a fault. At the same time, a control operation is carried out by the computer 1 and with application of the target value, the feedback amount, the operation amount and the control arithmetic result each that are stored in the device 5. Thus the computer 1 is decided normal when all the above-mentioned values are regenerated and then decided faulty if just one uncoincidence is detected among these values with a display given at the display device 6. In such way, the fault of a microcomputer can be decided.
JP1667380A 1980-02-15 1980-02-15 Fault diagnosing method of digital controller Pending JPS56114009A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1667380A JPS56114009A (en) 1980-02-15 1980-02-15 Fault diagnosing method of digital controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1667380A JPS56114009A (en) 1980-02-15 1980-02-15 Fault diagnosing method of digital controller

Publications (1)

Publication Number Publication Date
JPS56114009A true JPS56114009A (en) 1981-09-08

Family

ID=11922823

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1667380A Pending JPS56114009A (en) 1980-02-15 1980-02-15 Fault diagnosing method of digital controller

Country Status (1)

Country Link
JP (1) JPS56114009A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61225417A (en) * 1985-03-29 1986-10-07 新明和工業株式会社 Alarm control apparatus of liquid scattering vehicle

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61225417A (en) * 1985-03-29 1986-10-07 新明和工業株式会社 Alarm control apparatus of liquid scattering vehicle

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