JPH0152762B2 - - Google Patents

Info

Publication number
JPH0152762B2
JPH0152762B2 JP55139571A JP13957180A JPH0152762B2 JP H0152762 B2 JPH0152762 B2 JP H0152762B2 JP 55139571 A JP55139571 A JP 55139571A JP 13957180 A JP13957180 A JP 13957180A JP H0152762 B2 JPH0152762 B2 JP H0152762B2
Authority
JP
Japan
Prior art keywords
routine
time
relay
output
abnormality
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
JP55139571A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5764807A (en
Inventor
Toshitada Suzuki
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.)
Omron Corp
Original Assignee
Omron Tateisi Electronics Co
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 Omron Tateisi Electronics Co filed Critical Omron Tateisi Electronics Co
Priority to JP55139571A priority Critical patent/JPS5764807A/ja
Publication of JPS5764807A publication Critical patent/JPS5764807A/ja
Publication of JPH0152762B2 publication Critical patent/JPH0152762B2/ja
Granted legal-status Critical Current

Links

Classifications

    • 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
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
    • G05B19/05—Programmable logic controllers, e.g. simulating logic interconnections of signals according to ladder diagrams or function charts
    • G05B19/058—Safety, monitoring
    • 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
    • G05B2219/00—Program-control systems
    • G05B2219/10—Plc systems
    • G05B2219/11—Plc I-O input output
    • G05B2219/1181—Detection of I-O faults, shut down of I-O
    • 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
    • G05B2219/00—Program-control systems
    • G05B2219/10—Plc systems
    • G05B2219/14—Plc safety
    • G05B2219/14074—Signature analysis, recorded states, zones are compared to actual

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Testing And Monitoring For Control Systems (AREA)
JP55139571A 1980-10-06 1980-10-06 Programmable logic controller Granted JPS5764807A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55139571A JPS5764807A (en) 1980-10-06 1980-10-06 Programmable logic controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55139571A JPS5764807A (en) 1980-10-06 1980-10-06 Programmable logic controller

Publications (2)

Publication Number Publication Date
JPS5764807A JPS5764807A (en) 1982-04-20
JPH0152762B2 true JPH0152762B2 (zh) 1989-11-10

Family

ID=15248362

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55139571A Granted JPS5764807A (en) 1980-10-06 1980-10-06 Programmable logic controller

Country Status (1)

Country Link
JP (1) JPS5764807A (zh)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59111507A (ja) * 1982-12-17 1984-06-27 Mitsubishi Electric Corp シ−ケンスモニタ装置
JPS6063611A (ja) * 1983-09-16 1985-04-12 Inoue Japax Res Inc 数値制御電気加工装置
CA1305238C (en) * 1985-07-19 1992-07-14 Rodger T. Lovrenich Control system with diagnostic logic

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50156167A (zh) * 1974-06-10 1975-12-17

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50156167A (zh) * 1974-06-10 1975-12-17

Also Published As

Publication number Publication date
JPS5764807A (en) 1982-04-20

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