DE69306389D1 - Intelligentes prozesssteuerverbindungssystem und verfahren. - Google Patents

Intelligentes prozesssteuerverbindungssystem und verfahren.

Info

Publication number
DE69306389D1
DE69306389D1 DE69306389T DE69306389T DE69306389D1 DE 69306389 D1 DE69306389 D1 DE 69306389D1 DE 69306389 T DE69306389 T DE 69306389T DE 69306389 T DE69306389 T DE 69306389T DE 69306389 D1 DE69306389 D1 DE 69306389D1
Authority
DE
Germany
Prior art keywords
process control
computer
communication interface
control computers
serial communication
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 - Fee Related
Application number
DE69306389T
Other languages
English (en)
Other versions
DE69306389T2 (de
Inventor
James Allbery
Susan Johnson
Peter Troisi
James Cullen
Richard Butler
Chiman Patel
James Ferreira
James Uban
Joseph Ellison
Dale Schultz
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.)
Dow Chemical Co
Original Assignee
Dow Chemical Co
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 Dow Chemical Co filed Critical Dow Chemical Co
Application granted granted Critical
Publication of DE69306389D1 publication Critical patent/DE69306389D1/de
Publication of DE69306389T2 publication Critical patent/DE69306389T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
    • G06F11/16—Error detection or correction of the data by redundancy in hardware
    • G06F11/1629—Error detection by comparing the output of redundant processing systems
    • G06F11/1633—Error detection by comparing the output of redundant processing systems using mutual exchange of the output between the redundant processing components
    • 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
    • G05B9/00—Safety arrangements
    • G05B9/02—Safety arrangements electric
    • G05B9/03—Safety arrangements electric with multiple-channel loop, i.e. redundant control systems
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
    • G06F11/16—Error detection or correction of the data by redundancy in hardware
    • G06F11/1675—Temporal synchronisation or re-synchronisation of redundant processing components
    • G06F11/1691—Temporal synchronisation or re-synchronisation of redundant processing components using a quantum
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
    • G06F11/16—Error detection or correction of the data by redundancy in hardware
    • G06F11/1675—Temporal synchronisation or re-synchronisation of redundant processing components
    • G06F11/1679—Temporal synchronisation or re-synchronisation of redundant processing components at clock signal level

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Quality & Reliability (AREA)
  • General Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Multi Processors (AREA)
  • Computer And Data Communications (AREA)
  • Communication Control (AREA)
  • Hardware Redundancy (AREA)
DE69306389T 1992-06-12 1993-06-01 Intelligentes prozesssteuerverbindungssystem und verfahren. Expired - Fee Related DE69306389T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US89812692A 1992-06-12 1992-06-12
PCT/US1993/005206 WO1993025965A1 (en) 1992-06-12 1993-06-01 Intelligent process control communication system and method

Publications (2)

Publication Number Publication Date
DE69306389D1 true DE69306389D1 (de) 1997-01-16
DE69306389T2 DE69306389T2 (de) 1997-06-26

Family

ID=25408983

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69306389T Expired - Fee Related DE69306389T2 (de) 1992-06-12 1993-06-01 Intelligentes prozesssteuerverbindungssystem und verfahren.

Country Status (9)

Country Link
US (1) US5519603A (de)
EP (1) EP0645033B1 (de)
JP (1) JPH07507891A (de)
AU (1) AU4400793A (de)
CA (1) CA2136633A1 (de)
DE (1) DE69306389T2 (de)
ES (1) ES2097517T3 (de)
MX (1) MX9303507A (de)
WO (1) WO1993025965A1 (de)

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Also Published As

Publication number Publication date
AU4400793A (en) 1994-01-04
WO1993025965A1 (en) 1993-12-23
US5519603A (en) 1996-05-21
EP0645033A1 (de) 1995-03-29
DE69306389T2 (de) 1997-06-26
CA2136633A1 (en) 1993-12-23
EP0645033B1 (de) 1996-12-04
JPH07507891A (ja) 1995-08-31
ES2097517T3 (es) 1997-04-01
MX9303507A (es) 1995-01-31

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee