JPS5789104A - Control method of parallel processing type programmable controller - Google Patents

Control method of parallel processing type programmable controller

Info

Publication number
JPS5789104A
JPS5789104A JP16499080A JP16499080A JPS5789104A JP S5789104 A JPS5789104 A JP S5789104A JP 16499080 A JP16499080 A JP 16499080A JP 16499080 A JP16499080 A JP 16499080A JP S5789104 A JPS5789104 A JP S5789104A
Authority
JP
Japan
Prior art keywords
transition signal
signal
control method
parallel processing
transmission
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
JP16499080A
Other languages
Japanese (ja)
Inventor
Toru Tamano
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.)
Toyota Motor Corp
Original Assignee
Toyota Motor 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 Toyota Motor Corp filed Critical Toyota Motor Corp
Priority to JP16499080A priority Critical patent/JPS5789104A/en
Publication of JPS5789104A publication Critical patent/JPS5789104A/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
    • G05B19/052—Linking several PLC's

Landscapes

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

Abstract

PURPOSE:To realize a parallel operation for plural programmable controllers (PC) based on a program, by transmitting and receiving the transition signal via a transmission line that connects the PCs and thus without applying a real wiring for the transition signal. CONSTITUTION:The conditions for actuation of an electromagnetic valve VC are obtained in accordance with execution of a program. Thus the valve VC works, and at the same time a transition signal omega is transmitted. This signal is then written into a memory M2 exclusive for the signal omega of each PC via a transmission line T. Then a PC3 reads the contents of an address X3 of the memory M2, and accordingly a sequence that closes a contact Tomega for the transition signal shown by S30 is executed. When the transmission/reception of the transition signal is required between the PCs during the execution of the sequence, a flag is set at the position of an address X4 for instance. Thereafter, a parallel operation is carried out through the transmission/reception of the flag.
JP16499080A 1980-11-21 1980-11-21 Control method of parallel processing type programmable controller Pending JPS5789104A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16499080A JPS5789104A (en) 1980-11-21 1980-11-21 Control method of parallel processing type programmable controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16499080A JPS5789104A (en) 1980-11-21 1980-11-21 Control method of parallel processing type programmable controller

Publications (1)

Publication Number Publication Date
JPS5789104A true JPS5789104A (en) 1982-06-03

Family

ID=15803737

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16499080A Pending JPS5789104A (en) 1980-11-21 1980-11-21 Control method of parallel processing type programmable controller

Country Status (1)

Country Link
JP (1) JPS5789104A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6048504A (en) * 1983-08-26 1985-03-16 Hitachi Ltd Connection system of sequence controller
JPS6111805A (en) * 1984-06-27 1986-01-20 Hitachi Ltd Sequence control device
JPS63187800U (en) * 1987-05-26 1988-12-01
EP0487117A2 (en) * 1985-07-19 1992-05-27 Rodger T. Lovrenich A distributed logic control system

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6048504A (en) * 1983-08-26 1985-03-16 Hitachi Ltd Connection system of sequence controller
JPS6111805A (en) * 1984-06-27 1986-01-20 Hitachi Ltd Sequence control device
EP0487117A2 (en) * 1985-07-19 1992-05-27 Rodger T. Lovrenich A distributed logic control system
EP0487117A3 (en) * 1985-07-19 1992-10-21 Rodger T. Lovrenich A distributed logic control system
JPS63187800U (en) * 1987-05-26 1988-12-01

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