JPH0581923B2 - - Google Patents

Info

Publication number
JPH0581923B2
JPH0581923B2 JP58236107A JP23610783A JPH0581923B2 JP H0581923 B2 JPH0581923 B2 JP H0581923B2 JP 58236107 A JP58236107 A JP 58236107A JP 23610783 A JP23610783 A JP 23610783A JP H0581923 B2 JPH0581923 B2 JP H0581923B2
Authority
JP
Japan
Prior art keywords
selection
latch circuit
input
unit
connector
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.)
Expired - Lifetime
Application number
JP58236107A
Other languages
English (en)
Japanese (ja)
Other versions
JPS60128505A (ja
Inventor
Naotake Kurokawa
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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP58236107A priority Critical patent/JPS60128505A/ja
Priority to US06/585,552 priority patent/US4602325A/en
Priority to DE8484103610T priority patent/DE3481653D1/de
Priority to EP84103610A priority patent/EP0148307B1/en
Publication of JPS60128505A publication Critical patent/JPS60128505A/ja
Publication of JPH0581923B2 publication Critical patent/JPH0581923B2/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
    • G05B2219/1123—Poll and detect connected I-O addresses, not connected means high address
    • 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
    • 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
    • G05B2219/1131—I-O connected to a bus

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Programmable Controllers (AREA)
JP58236107A 1983-12-16 1983-12-16 プログラマブルコントロ−ラ Granted JPS60128505A (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP58236107A JPS60128505A (ja) 1983-12-16 1983-12-16 プログラマブルコントロ−ラ
US06/585,552 US4602325A (en) 1983-12-16 1984-03-02 Programmable controller
DE8484103610T DE3481653D1 (de) 1983-12-16 1984-04-02 Programmierbare steuerung.
EP84103610A EP0148307B1 (en) 1983-12-16 1984-04-02 Programmable controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58236107A JPS60128505A (ja) 1983-12-16 1983-12-16 プログラマブルコントロ−ラ

Publications (2)

Publication Number Publication Date
JPS60128505A JPS60128505A (ja) 1985-07-09
JPH0581923B2 true JPH0581923B2 (enExample) 1993-11-16

Family

ID=16995833

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58236107A Granted JPS60128505A (ja) 1983-12-16 1983-12-16 プログラマブルコントロ−ラ

Country Status (4)

Country Link
US (1) US4602325A (enExample)
EP (1) EP0148307B1 (enExample)
JP (1) JPS60128505A (enExample)
DE (1) DE3481653D1 (enExample)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61118802A (ja) * 1984-11-15 1986-06-06 Fuji Electric Co Ltd シ−ケンスコントロ−ラのプロセス入出力装置
US4801813A (en) * 1986-02-17 1989-01-31 Tektronix, Inc. Event distribution and combination system
US4789789A (en) * 1986-02-17 1988-12-06 Tektronix, Inc. Event distribution and combination system
JPS6341907A (ja) * 1986-08-08 1988-02-23 Oki Electric Ind Co Ltd Ｉ／ｏ装置のアクセス方式
JPS6341906A (ja) * 1986-08-08 1988-02-23 Oki Electric Ind Co Ltd アクチユエ−タのアクセス方式

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3986179A (en) * 1975-06-30 1976-10-12 Honeywell Information Systems, Inc. Fault-tolerant CCD memory chip
US4050098A (en) * 1975-11-17 1977-09-20 Gulf & Western Industries, Inc. Self-addressing modules for programmable controller
US4104731A (en) * 1976-06-14 1978-08-01 Allen-Bradley Company Asynchronous coupling of data between a word-oriented I/O module and the memory of a programmable controller
US4079452A (en) * 1976-06-15 1978-03-14 Bunker Ramo Corporation Programmable controller with modular firmware for communication control
US4064395A (en) * 1976-08-17 1977-12-20 Cincinnati Milacron Inc. Machine control system employing a programmable machine function controller
US4078259A (en) * 1976-09-29 1978-03-07 Gulf & Western Industries, Inc. Programmable controller having a system for monitoring the logic conditions at external locations
JPS54114687A (en) * 1978-02-27 1979-09-06 Toyoda Mach Works Ltd Sequence controller

Also Published As

Publication number Publication date
DE3481653D1 (de) 1990-04-19
US4602325A (en) 1986-07-22
JPS60128505A (ja) 1985-07-09
EP0148307A3 (en) 1986-11-26
EP0148307A2 (en) 1985-07-17
EP0148307B1 (en) 1990-03-14

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