ES2133268T3 - Controlador programable. - Google Patents

Controlador programable.

Info

Publication number
ES2133268T3
ES2133268T3 ES90125864T ES90125864T ES2133268T3 ES 2133268 T3 ES2133268 T3 ES 2133268T3 ES 90125864 T ES90125864 T ES 90125864T ES 90125864 T ES90125864 T ES 90125864T ES 2133268 T3 ES2133268 T3 ES 2133268T3
Authority
ES
Spain
Prior art keywords
processor
memories
programmable controller
program stored
user program
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
ES90125864T
Other languages
English (en)
Inventor
Atsushi Itoh
Tsutomu Sunaga
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
Application granted granted Critical
Publication of ES2133268T3 publication Critical patent/ES2133268T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F8/00—Arrangements for software engineering
    • G06F8/60—Software deployment
    • G06F8/65—Updates
    • G06F8/656—Updates while running
    • 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
    • G05B2219/13—Plc programming
    • G05B2219/13153—Modification, change of program in real time

Landscapes

  • Engineering & Computer Science (AREA)
  • Software Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Programmable Controllers (AREA)

Abstract

UN CONTROLADOR PROGRAMABLE COMPRENDE DOS MEMORIAS (5A, 5B) A LOS QUE SE PUEDE ACCEDER POR LAS MISMAS DIRECCIONES, UN PROCESADOR DE SECUENCIAS (3) QUE EJECUTA EL PROGRAMA DEL USUARIO ALMACENADO EN UNA DE LAS DOS MEMORIAS (5A, 5B), UN PROCESADOR DE CONTROL (1) QUE DA ACCESO Y ACTUALIZA UN PROGRAMA DE USUARIO ALMACENADO EN LA OTRA MEMORIA (5B, 5A) MIENTRAS QUE EL PROCESADOR DE SECUENCIAS NO ESTA UTILIZANDO UNA DISPOSICION DE BUS, Y UN ELEMENTO SELECTOR DE MEMORIA (6) QUE SELECCIONA UNA DE LAS DOS MEMORIAS (5A, 5B) PARA SU ACCESO POR EL PROCESADOR DE SECUENCIAS Y POR EL PROCESADOR DE CONTROL.
ES90125864T 1990-03-19 1990-12-31 Controlador programable. Expired - Lifetime ES2133268T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2066792A JP2875842B2 (ja) 1990-03-19 1990-03-19 プログラマブルコントローラ

Publications (1)

Publication Number Publication Date
ES2133268T3 true ES2133268T3 (es) 1999-09-16

Family

ID=13326072

Family Applications (1)

Application Number Title Priority Date Filing Date
ES90125864T Expired - Lifetime ES2133268T3 (es) 1990-03-19 1990-12-31 Controlador programable.

Country Status (5)

Country Link
US (1) US5600807A (es)
EP (1) EP0447685B1 (es)
JP (1) JP2875842B2 (es)
DE (1) DE69033031T2 (es)
ES (1) ES2133268T3 (es)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2997005B2 (ja) * 1990-04-12 2000-01-11 キヤノン株式会社 出力装置
US5831852A (en) * 1992-12-14 1998-11-03 Carrier Corporation Method and apparatus for loading a control program into a refrigeration system
JP2000339008A (ja) * 1999-05-27 2000-12-08 Hitachi Ltd プログラマブルコントローラ
US6678274B1 (en) * 1999-07-30 2004-01-13 Riverstone Networks, Inc. Method and system for managing forwarding tables
US7228538B1 (en) * 2000-05-02 2007-06-05 International Business Machines Corporation Method, system, and program for updating firmware to a storage system comprised of multiple controllers
JP3594035B2 (ja) * 2003-03-13 2004-11-24 オムロン株式会社 制御装置、ｃｐｕユニット、プログラマブルコントローラのユーザプログラム編集方法、及びオンラインエディットされる際のプログラマブルコントローラの処理方法
JP2008077265A (ja) * 2006-09-20 2008-04-03 Fuji Electric Fa Components & Systems Co Ltd プログラマブルコントローラのプログラム更新方法
WO2008058101A2 (en) * 2006-11-07 2008-05-15 Sandisk Corporation Memory controllers for performing resilient firmware upgrades to a functioning memory
US8286156B2 (en) * 2006-11-07 2012-10-09 Sandisk Technologies Inc. Methods and apparatus for performing resilient firmware upgrades to a functioning memory
US20080109647A1 (en) * 2006-11-07 2008-05-08 Lee Merrill Gavens Memory controllers for performing resilient firmware upgrades to a functioning memory
US7836347B2 (en) 2007-10-17 2010-11-16 GE Intelligent Platforms Inc. Service and diagnostic logic scan apparatus and method
US8973124B2 (en) 2012-04-30 2015-03-03 General Electric Company Systems and methods for secure operation of an industrial controller
JP5906972B2 (ja) * 2012-07-05 2016-04-20 富士ゼロックス株式会社 画像形成装置および画像読取装置
US9116774B2 (en) 2013-05-14 2015-08-25 Sandisk Technologies Inc. Firmware updates for multiple product configurations
JP5937637B2 (ja) * 2014-04-30 2016-06-22 ファナック株式会社 シーケンスプログラムの切り替え時に、切り替え予告信号を出力する制御装置

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4257095A (en) * 1978-06-30 1981-03-17 Intel Corporation System bus arbitration, circuitry and methodology
US4257097A (en) * 1978-12-11 1981-03-17 Bell Telephone Laboratories, Incorporated Multiprocessor system with demand assignable program paging stores
DE3610155A1 (de) * 1986-03-26 1987-10-08 Joachim Bauer Mehrprozessorsystem fuer paralleles schreiben und lesen von informationen
US5012408A (en) * 1990-03-15 1991-04-30 Digital Equipment Corporation Memory array addressing system for computer systems with multiple memory arrays
US5144242A (en) * 1990-08-23 1992-09-01 The Regents Of The University Of California Continually loadable microcode store for MRI control sequencers

Also Published As

Publication number Publication date
EP0447685B1 (en) 1999-03-31
JP2875842B2 (ja) 1999-03-31
DE69033031D1 (de) 1999-05-06
JPH03268005A (ja) 1991-11-28
EP0447685A2 (en) 1991-09-25
EP0447685A3 (en) 1992-11-19
DE69033031T2 (de) 1999-12-16
US5600807A (en) 1997-02-04

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