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JPS5674701A - Double system switching decision apparatus of process computer - Google Patents

Double system switching decision apparatus of process computer

Info

Publication number
JPS5674701A
JPS5674701A JP15070979A JP15070979A JPS5674701A JP S5674701 A JPS5674701 A JP S5674701A JP 15070979 A JP15070979 A JP 15070979A JP 15070979 A JP15070979 A JP 15070979A JP S5674701 A JPS5674701 A JP S5674701A
Authority
JP
Japan
Prior art keywords
control system
cpus
standby
switching
decision apparatus
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.)
Pending
Application number
JP15070979A
Other languages
Japanese (ja)
Inventor
Mitsuo Kuzuu
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 JP15070979A priority Critical patent/JPS5674701A/en
Publication of JPS5674701A publication Critical patent/JPS5674701A/en
Pending legal-status Critical Current

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  • Feedback Control In General (AREA)

Abstract

PURPOSE: To simplify the software and exactly switch the computers, by deciding and instructing to switch the computers of the control system and the standby system by means of the relay sequence of the decision apparatus as the third party position.
CONSTITUTION: Both the computer systems of A system and B system are equipped with CPUs 1A, 1B, process input/output units 2A, 2B, and disks 3A, 3B. In order to prepare for switching of the control system standby system, CPUs 1A, 1B, write the data to both the disks 3A, 3B, and the data link unit also writes the information to the main storage of the standby system from the control system. The monitor switching panel 5 and the decision apparatus 6 send the input signals to CPUs 1A, 1B through the units 2A, 2B, and also input the signals from CPUs. Supposing a heavy fault has occurred in the A control system, the plant is controlled by switching the output change-over switch 7 to the standby system B which is executing the same program as the A control system by means of the relay sequence contained in the apparatus 6. The A system is made to rise by the automatic restart function, and is shifted to the holding system in accordance with the instructions of the apparatus 6.
COPYRIGHT: (C)1981,JPO&Japio
JP15070979A 1979-11-22 1979-11-22 Double system switching decision apparatus of process computer Pending JPS5674701A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15070979A JPS5674701A (en) 1979-11-22 1979-11-22 Double system switching decision apparatus of process computer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15070979A JPS5674701A (en) 1979-11-22 1979-11-22 Double system switching decision apparatus of process computer

Publications (1)

Publication Number Publication Date
JPS5674701A true JPS5674701A (en) 1981-06-20

Family

ID=15502686

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15070979A Pending JPS5674701A (en) 1979-11-22 1979-11-22 Double system switching decision apparatus of process computer

Country Status (1)

Country Link
JP (1) JPS5674701A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS599705A (en) * 1982-07-09 1984-01-19 Toshiba Corp Plant operation control device
WO2010010623A1 (en) * 2008-07-24 2010-01-28 三菱電機株式会社 Train braking device
JP2013012094A (en) * 2011-06-30 2013-01-17 Mitsubishi Electric Corp Duplex control device

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS599705A (en) * 1982-07-09 1984-01-19 Toshiba Corp Plant operation control device
WO2010010623A1 (en) * 2008-07-24 2010-01-28 三菱電機株式会社 Train braking device
JP4606519B2 (en) * 2008-07-24 2011-01-05 三菱電機株式会社 Train brake equipment
JPWO2010010623A1 (en) * 2008-07-24 2012-01-05 三菱電機株式会社 Train brake equipment
US8646853B2 (en) 2008-07-24 2014-02-11 Mitsubishi Electric Corporation Train braking device
JP2013012094A (en) * 2011-06-30 2013-01-17 Mitsubishi Electric Corp Duplex control device

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