JPS5736304A - Multiplex control circuit - Google Patents

Multiplex control circuit

Info

Publication number
JPS5736304A
JPS5736304A JP11128680A JP11128680A JPS5736304A JP S5736304 A JPS5736304 A JP S5736304A JP 11128680 A JP11128680 A JP 11128680A JP 11128680 A JP11128680 A JP 11128680A JP S5736304 A JPS5736304 A JP S5736304A
Authority
JP
Japan
Prior art keywords
controllers
added
signals
output
values
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.)
Granted
Application number
JP11128680A
Other languages
Japanese (ja)
Other versions
JPS6230443B2 (en
Inventor
Shinji Sakakibara
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP11128680A priority Critical patent/JPS5736304A/en
Publication of JPS5736304A publication Critical patent/JPS5736304A/en
Publication of JPS6230443B2 publication Critical patent/JPS6230443B2/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
    • G05B9/00—Safety arrangements
    • G05B9/02—Safety arrangements electric
    • G05B9/03—Safety arrangements electric with multiple-channel loop, i.e. redundant control systems

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Safety Devices In Control Systems (AREA)

Abstract

PURPOSE:To shift control automatically to other normal controllers even if a controller in using is failed by using balance between multiplexed controllers. CONSTITUTION:In respect to controllers 1a, 1b and 1c, values obtained by inverting the polarity of their output signals S4a, S4b and S4c are added to the output signal S3 of an intermediate value selection circuit 2 to obtain added signals S5a, S5b and S5c. Then the added signals S5a, S5b and S5c are added to the input signal S1 of respective controllers 1a, 1b and 1c to obtaine added values S6a, S6b and S6c and form a feedback circuit group. Thus, the values of the output signal S3 of the circuit 2 and the output signals S4a, S4b and S4c of respective controllers 1a, 1b and 1c are automatically canceled. Therefore, even if one of controllers at use is failed, control can be automatically shifted to other nomal controllers without sudden change of control output.
JP11128680A 1980-08-13 1980-08-13 Multiplex control circuit Granted JPS5736304A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11128680A JPS5736304A (en) 1980-08-13 1980-08-13 Multiplex control circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11128680A JPS5736304A (en) 1980-08-13 1980-08-13 Multiplex control circuit

Publications (2)

Publication Number Publication Date
JPS5736304A true JPS5736304A (en) 1982-02-27
JPS6230443B2 JPS6230443B2 (en) 1987-07-02

Family

ID=14557370

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11128680A Granted JPS5736304A (en) 1980-08-13 1980-08-13 Multiplex control circuit

Country Status (1)

Country Link
JP (1) JPS5736304A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6151201A (en) * 1985-07-31 1986-03-13 Hitachi Ltd Triplex controller
JPS61180302A (en) * 1986-02-06 1986-08-13 Toshiba Corp Automatic controller

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6151201A (en) * 1985-07-31 1986-03-13 Hitachi Ltd Triplex controller
JPS61180302A (en) * 1986-02-06 1986-08-13 Toshiba Corp Automatic controller

Also Published As

Publication number Publication date
JPS6230443B2 (en) 1987-07-02

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