JPS5773414A - Sequence controller - Google Patents

Sequence controller

Info

Publication number
JPS5773414A
JPS5773414A JP55149627A JP14962780A JPS5773414A JP S5773414 A JPS5773414 A JP S5773414A JP 55149627 A JP55149627 A JP 55149627A JP 14962780 A JP14962780 A JP 14962780A JP S5773414 A JPS5773414 A JP S5773414A
Authority
JP
Japan
Prior art keywords
fault
circuit
address
program
internal relay
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
JP55149627A
Other languages
Japanese (ja)
Inventor
Hisashi Shigematsu
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.)
KOYO DENSHI KOGYO KK
Koyo Electronics Industries Co Ltd
Original Assignee
KOYO DENSHI KOGYO KK
Koyo Electronics Industries 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 KOYO DENSHI KOGYO KK, Koyo Electronics Industries Co Ltd filed Critical KOYO DENSHI KOGYO KK
Priority to JP55149627A priority Critical patent/JPS5773414A/en
Publication of JPS5773414A publication Critical patent/JPS5773414A/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
    • G06F11/28—Error detection; Error correction; Monitoring by checking the correct order of processing

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Quality & Reliability (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Testing And Monitoring For Control Systems (AREA)
  • Safety Devices In Control Systems (AREA)

Abstract

PURPOSE:To increase both the safety and the economical efficiency of a sequence controller, by actuating an internal relay based on a detected fault and carrying out the fault process through a fault process program of the sequence controller. CONSTITUTION:A sequence instruction 3a stored in a program storage part 3 is read through a program reading part 1 and supplied to an arithmetic part 4. The part 4 reads a desired data 5a out of a data storage part 5 by the instruction 3a and calculates it, and the result of this calculation is written into the part 5. When the execution of this program is over, the part 1 produces an address signal 2a to the part 5, an input circuit 6 and an output circuit 7 respectively and calculates at 4 the signal given from the circuit 6 to deliver it to the circuit 7 via the part 5. When a fault is detected, through a fault detecting circuit 8, a fault signal is delivered to a fault input circuit 10. At the same time, a fault address detecting circuit 9 detects a fault and then detects the address of an internal relay to supply it to the circuit 10. The circuit 10 designates the address which stores an internal relay of the part 5 and actuates the internal relay to carry out a fault process.
JP55149627A 1980-10-25 1980-10-25 Sequence controller Pending JPS5773414A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55149627A JPS5773414A (en) 1980-10-25 1980-10-25 Sequence controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55149627A JPS5773414A (en) 1980-10-25 1980-10-25 Sequence controller

Publications (1)

Publication Number Publication Date
JPS5773414A true JPS5773414A (en) 1982-05-08

Family

ID=15479349

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55149627A Pending JPS5773414A (en) 1980-10-25 1980-10-25 Sequence controller

Country Status (1)

Country Link
JP (1) JPS5773414A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59101830A (en) * 1982-12-01 1984-06-12 Canon Inc Printing and exposure device for semiconductor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59101830A (en) * 1982-12-01 1984-06-12 Canon Inc Printing and exposure device for semiconductor
JPH0141012B2 (en) * 1982-12-01 1989-09-01 Canon Kk

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