JPS57212519A - Programmable controller - Google Patents

Programmable controller

Info

Publication number
JPS57212519A
JPS57212519A JP9875081A JP9875081A JPS57212519A JP S57212519 A JPS57212519 A JP S57212519A JP 9875081 A JP9875081 A JP 9875081A JP 9875081 A JP9875081 A JP 9875081A JP S57212519 A JPS57212519 A JP S57212519A
Authority
JP
Japan
Prior art keywords
data
parallel operation
cpu
output
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
JP9875081A
Other languages
Japanese (ja)
Inventor
Kazuhiko Tomatsuri
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 JP9875081A priority Critical patent/JPS57212519A/en
Publication of JPS57212519A publication Critical patent/JPS57212519A/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
    • 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
    • G05B2219/1125—I-O addressing

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Information Transfer Systems (AREA)
  • Control By Computers (AREA)
  • Programmable Controllers (AREA)

Abstract

PURPOSE:To execute both a single operation and a parallel operation, and also to execute the parallel operation, utilizing the capacity of a controller, without decreasing a connectable number of external devices, by adding a data input/ output I/F for the parallel operation. CONSTITUTION:A CPU 10 processes input/output data through I/Fs 12, 14, but on the other hand, for its parallel operation, the transfer of data between plural programmable controllers 16, 18 is executed by input and output I/Fs 24, 26 used for other parallel operation. Also, transmission and reception of data for the parallel operation are executed by a microprogram of the CPU 10. The CPU 10 generates a data output request signal to other controller through the I/F 26, and fetches register receiving data. Also, when the request signal is received from other controller, the data of a register in the CPU 10 is transmitted. In this way, exchange of data required for the parallel operation is mutually executed between plural programmable controllers.
JP9875081A 1981-06-25 1981-06-25 Programmable controller Pending JPS57212519A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9875081A JPS57212519A (en) 1981-06-25 1981-06-25 Programmable controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9875081A JPS57212519A (en) 1981-06-25 1981-06-25 Programmable controller

Publications (1)

Publication Number Publication Date
JPS57212519A true JPS57212519A (en) 1982-12-27

Family

ID=14228134

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9875081A Pending JPS57212519A (en) 1981-06-25 1981-06-25 Programmable controller

Country Status (1)

Country Link
JP (1) JPS57212519A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02143650U (en) * 1988-12-31 1990-12-05
JPH0399302A (en) * 1989-09-05 1991-04-24 Honeywell Inc Process controller

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02143650U (en) * 1988-12-31 1990-12-05
JPH0399302A (en) * 1989-09-05 1991-04-24 Honeywell Inc Process controller

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