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JPS56118106A - Sequence controller - Google Patents

Sequence controller

Info

Publication number
JPS56118106A
JPS56118106A JP2126280A JP2126280A JPS56118106A JP S56118106 A JPS56118106 A JP S56118106A JP 2126280 A JP2126280 A JP 2126280A JP 2126280 A JP2126280 A JP 2126280A JP S56118106 A JPS56118106 A JP S56118106A
Authority
JP
Japan
Prior art keywords
sequence
sequence block
task
block
vectors
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
JP2126280A
Other languages
Japanese (ja)
Inventor
Isaburo Kataoka
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP2126280A priority Critical patent/JPS56118106A/en
Publication of JPS56118106A publication Critical patent/JPS56118106A/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
    • G05B19/05—Programmable logic controllers, e.g. simulating logic interconnections of signals according to ladder diagrams or function charts
    • G05B19/056—Programming the PLC

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Programmable Controllers (AREA)

Abstract

PURPOSE:To enable to make easy the addition and correction of a program, by storing the task vector to a sequence block in contrast with the physical absolute address. CONSTITUTION:The output address O1 consisting of a relay is obtained with input addresses I1, I2, I3 consisting of normally open contacts and an input address I4 consisting of normally closed contacts, having a relay sequence as the sequence block, and thus the operation of the algebraic expression S1 is executed. Thus, one task is assigned to the sequence block, and the total sequence is similarly sectioned into the sequence block every task, and vectors P1...Pn, Pn+1, Pn+2...Pl corresponding to the label are added to each sequence block, and each sequence block is defined by the vectors P1...Pn, Pn+1, Pn+2...Pl.
JP2126280A 1980-02-21 1980-02-21 Sequence controller Pending JPS56118106A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2126280A JPS56118106A (en) 1980-02-21 1980-02-21 Sequence controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2126280A JPS56118106A (en) 1980-02-21 1980-02-21 Sequence controller

Publications (1)

Publication Number Publication Date
JPS56118106A true JPS56118106A (en) 1981-09-17

Family

ID=12050176

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2126280A Pending JPS56118106A (en) 1980-02-21 1980-02-21 Sequence controller

Country Status (1)

Country Link
JP (1) JPS56118106A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61168004A (en) * 1985-01-21 1986-07-29 Mitsubishi Electric Corp Programmable controller provided with application instruction
EP0635772A1 (en) * 1990-03-02 1995-01-25 Mitsubishi Denki Kabushiki Kaisha Controller programming apparatus and process using ladder diagram technique

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61168004A (en) * 1985-01-21 1986-07-29 Mitsubishi Electric Corp Programmable controller provided with application instruction
EP0635772A1 (en) * 1990-03-02 1995-01-25 Mitsubishi Denki Kabushiki Kaisha Controller programming apparatus and process using ladder diagram technique

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