JPS5789109A - On-line monitor device for sequence controller - Google Patents

On-line monitor device for sequence controller

Info

Publication number
JPS5789109A
JPS5789109A JP55166126A JP16612680A JPS5789109A JP S5789109 A JPS5789109 A JP S5789109A JP 55166126 A JP55166126 A JP 55166126A JP 16612680 A JP16612680 A JP 16612680A JP S5789109 A JPS5789109 A JP S5789109A
Authority
JP
Japan
Prior art keywords
memory
sequence controller
sequence
line monitor
controller
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
JP55166126A
Other languages
Japanese (ja)
Inventor
Toshihiko Yomogida
Itaru Sakurai
Takeshi Yokota
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.)
Toyoda Koki KK
Original Assignee
Toyoda Koki KK
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 Toyoda Koki KK filed Critical Toyoda Koki KK
Priority to JP55166126A priority Critical patent/JPS5789109A/en
Publication of JPS5789109A publication Critical patent/JPS5789109A/en
Pending 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
    • G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
    • G05B19/0428—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
    • 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
    • G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
    • G05B19/0426—Programming the control sequence
    • 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
    • G05B2219/15—Plc structure of the system
    • G05B2219/15046—Low-high intensity display, flashing

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Testing And Monitoring For Control Systems (AREA)
  • Programmable Controllers (AREA)

Abstract

PURPOSE:To realize the on-line monitor even for a sequence controller having no interruption function without discontinuing the scanning action, by providing a buffer memory which has the capacity same as or larger than that of the memory. CONSTITUTION:A microcomputer 30 recognizes that the keys are pushed for reading, retrieval and monitor, respectively, and transfers all the sequence programs stored in a memory 40 of a sequence controller SC to a buffer memory 32 via gates GA1, GD1 and G4. The memory 32 to which a sequence program and the on/off signal are transferred is properly read by an instruction of the computer 30. Then the monitor process is carried out for the retrieval of an instruction word, etc. Thus the monitoring is possible without discontinuing the scanning of the memory 40 although the controller SC has no interruption function.
JP55166126A 1980-11-26 1980-11-26 On-line monitor device for sequence controller Pending JPS5789109A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55166126A JPS5789109A (en) 1980-11-26 1980-11-26 On-line monitor device for sequence controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55166126A JPS5789109A (en) 1980-11-26 1980-11-26 On-line monitor device for sequence controller

Publications (1)

Publication Number Publication Date
JPS5789109A true JPS5789109A (en) 1982-06-03

Family

ID=15825508

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55166126A Pending JPS5789109A (en) 1980-11-26 1980-11-26 On-line monitor device for sequence controller

Country Status (1)

Country Link
JP (1) JPS5789109A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0498453A2 (en) * 1991-02-07 1992-08-12 Mitsubishi Denki Kabushiki Kaisha Programmable controller with independent display

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0498453A2 (en) * 1991-02-07 1992-08-12 Mitsubishi Denki Kabushiki Kaisha Programmable controller with independent display

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