SG55081A1 - Process control interface system having triply redundant remote field units - Google Patents

Process control interface system having triply redundant remote field units

Info

Publication number
SG55081A1
SG55081A1 SG1996005120A SG1996005120A SG55081A1 SG 55081 A1 SG55081 A1 SG 55081A1 SG 1996005120 A SG1996005120 A SG 1996005120A SG 1996005120 A SG1996005120 A SG 1996005120A SG 55081 A1 SG55081 A1 SG 55081A1
Authority
SG
Singapore
Prior art keywords
process control
control interface
interface system
field units
remote field
Prior art date
Application number
SG1996005120A
Other languages
English (en)
Inventor
Robert S Glaser
Robert S Hoy
G Paul Fernandez
Timothy J Grai
Dean W Gaudreau
Robert J Hozeska
Donald J Grinwis
Gregory J Gavit
Joseph Sheehan Jr
Lowell V Thomas
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
Publication of SG55081A1 publication Critical patent/SG55081A1/en

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
    • G05B23/00—Testing or monitoring of control systems or parts thereof
    • G05B23/02—Electric testing or monitoring
    • 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
    • G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
    • G05B19/0423—Input/output
    • G05B19/0425—Safety, monitoring
    • 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
    • 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
    • G05B2219/14—Plc safety
    • G05B2219/14123—Majority voting, dynamic redundant, persistency and integrity
    • 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
    • G05B2219/20—Pc systems
    • G05B2219/24—Pc safety
    • G05B2219/24184—Redundant I-O, software comparison of both channels
    • 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
    • G05B2219/20—Pc systems
    • G05B2219/24—Pc safety
    • G05B2219/24187—Redundant processors run identical programs
    • 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
    • G05B2219/20—Pc systems
    • G05B2219/24—Pc safety
    • G05B2219/24189—Redundant processors monitor same point, common parameters
    • 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
    • G05B2219/20—Pc systems
    • G05B2219/24—Pc safety
    • G05B2219/24192—Configurable redundancy
    • 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
    • G05B2219/20—Pc systems
    • G05B2219/25—Pc structure of the system
    • G05B2219/25428—Field device

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Hardware Redundancy (AREA)
  • Safety Devices In Control Systems (AREA)
  • Programmable Controllers (AREA)
SG1996005120A 1992-03-31 1993-03-15 Process control interface system having triply redundant remote field units SG55081A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/864,931 US5428769A (en) 1992-03-31 1992-03-31 Process control interface system having triply redundant remote field units

Publications (1)

Publication Number Publication Date
SG55081A1 true SG55081A1 (en) 1998-12-21

Family

ID=25344354

Family Applications (1)

Application Number Title Priority Date Filing Date
SG1996005120A SG55081A1 (en) 1992-03-31 1993-03-15 Process control interface system having triply redundant remote field units

Country Status (12)

Country Link
US (4) US5428769A (ja)
EP (4) EP1300735A2 (ja)
JP (1) JPH07507889A (ja)
KR (2) KR100322462B1 (ja)
AU (1) AU3918393A (ja)
CA (1) CA2131156A1 (ja)
DE (2) DE69332897T2 (ja)
ES (2) ES2128424T3 (ja)
HK (2) HK1011427A1 (ja)
MX (1) MX9301799A (ja)
SG (1) SG55081A1 (ja)
WO (1) WO1993020488A2 (ja)

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DE69332897T2 (de) 2004-02-26
HK1011427A1 (en) 1999-07-09
EP1300735A2 (en) 2003-04-09
DE69322626D1 (de) 1999-01-28
US5970226A (en) 1999-10-19
ES2128424T3 (es) 1999-05-16
DE69322626T2 (de) 1999-07-08
EP1193576A2 (en) 2002-04-03
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US6061809A (en) 2000-05-09
US5428769A (en) 1995-06-27
AU3918393A (en) 1993-11-08
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WO1993020488A2 (en) 1993-10-14
EP0869415A2 (en) 1998-10-07
EP0869415B1 (en) 2003-04-16
EP0631673A1 (en) 1995-01-04
US5862315A (en) 1999-01-19
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CA2131156A1 (en) 1993-10-14
HK1048670A1 (zh) 2003-04-11
EP0869415A3 (en) 1999-12-15
DE69332897D1 (de) 2003-05-22
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EP0631673B1 (en) 1998-12-16
JPH07507889A (ja) 1995-08-31

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