JPS5773407A - Sequence controller - Google Patents

Sequence controller

Info

Publication number
JPS5773407A
JPS5773407A JP14988980A JP14988980A JPS5773407A JP S5773407 A JPS5773407 A JP S5773407A JP 14988980 A JP14988980 A JP 14988980A JP 14988980 A JP14988980 A JP 14988980A JP S5773407 A JPS5773407 A JP S5773407A
Authority
JP
Japan
Prior art keywords
spc
satisfied
logical
scanning system
sequence 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.)
Granted
Application number
JP14988980A
Other languages
Japanese (ja)
Other versions
JPS6326889B2 (en
Inventor
Seishi Ochiai
Kikuji Morita
Shigeru Toyoda
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.)
Idec Izumi Corp
Original Assignee
Idec Izumi 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 Idec Izumi Corp filed Critical Idec Izumi Corp
Priority to JP14988980A priority Critical patent/JPS5773407A/en
Publication of JPS5773407A publication Critical patent/JPS5773407A/en
Publication of JPS6326889B2 publication Critical patent/JPS6326889B2/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
    • G05B19/054—Input/output
    • 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
    • G05B2219/1151—Fast scanning of I-O to put I-O status in image table

Landscapes

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

Abstract

PURPOSE:To realize plural type of logical arithmetic controls as well as the control through the step advance when the conditions are satisfied, by adding a furnction that advances the process when a certain condition is satisfied to a sequence controller of the scanning system. CONSTITUTION:A sequence controller of the scanning system executes plural types of logical arithmetic in parallel by repeating the program scan. A step controller SPC which advances successively its state in a prescribed sequence except for a jump instruction is provided to the above-mentioned sequence controller. In case when the SPC is under a specific state, e.g. an SPC2 and a certain logical arithmetic are incorporated into the same equivalent relay circuit with the SPC is at an SPC1 which is immediately before a specific state pulse an AND satisfied to the logical arithmatic, the SPC is advanced from the SPC1 to the SPC2. At the same time, an internal flag IR34 is set at 1 when it is designated. Accordingly the control performed through a step advance when the condition are satisfied is linked while executing the mutual and independent random logical controls by the scanning system. Thus the sequence control is possible.
JP14988980A 1980-10-25 1980-10-25 Sequence controller Granted JPS5773407A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14988980A JPS5773407A (en) 1980-10-25 1980-10-25 Sequence controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14988980A JPS5773407A (en) 1980-10-25 1980-10-25 Sequence controller

Publications (2)

Publication Number Publication Date
JPS5773407A true JPS5773407A (en) 1982-05-08
JPS6326889B2 JPS6326889B2 (en) 1988-06-01

Family

ID=15484844

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14988980A Granted JPS5773407A (en) 1980-10-25 1980-10-25 Sequence controller

Country Status (1)

Country Link
JP (1) JPS5773407A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58222305A (en) * 1982-06-18 1983-12-24 Idec Izumi Corp Scanning type sequence controller

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5663607A (en) * 1979-10-26 1981-05-30 Hitachi Ltd Sequence control unit

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5663607A (en) * 1979-10-26 1981-05-30 Hitachi Ltd Sequence control unit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58222305A (en) * 1982-06-18 1983-12-24 Idec Izumi Corp Scanning type sequence controller

Also Published As

Publication number Publication date
JPS6326889B2 (en) 1988-06-01

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