JPS55127602A - Backing-up method of controller of process conrol system - Google Patents

Backing-up method of controller of process conrol system

Info

Publication number
JPS55127602A
JPS55127602A JP3432779A JP3432779A JPS55127602A JP S55127602 A JPS55127602 A JP S55127602A JP 3432779 A JP3432779 A JP 3432779A JP 3432779 A JP3432779 A JP 3432779A JP S55127602 A JPS55127602 A JP S55127602A
Authority
JP
Japan
Prior art keywords
computer
controller
equipment
signal
control
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
JP3432779A
Other languages
Japanese (ja)
Inventor
Ryuichi Inaba
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 JP3432779A priority Critical patent/JPS55127602A/en
Publication of JPS55127602A publication Critical patent/JPS55127602A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To make it possible to exercise continuous process control meeting rquirements, by supplying needed control signals to a process equipment when the abnormality of the process equipment and an external condition signal is detected.
CONSTITUTION: Between computer 2 and controller 3 controlling process equipment 4 by being linked to computer 2, a start command from a higher rank computer to lower rank computer 2, transmitted to controller 3 via transmission line 6, and supplied from controller 3 to equipment 2 as control signal 10. If controller 3 would become abnormal after the outputting of the start command, computer 2 receives state signal 12 to check external condition signal 11 and when signal 11 and equipment 4 are both abnormal, needed control signal 13 is outputted to equipment 4, which is brought under control. Consequently, decentralized unit 3 is backed up by computer 2 linked to unit 3, so taht process control meeting requirements can continuously be exercised.
COPYRIGHT: (C)1980,JPO&Japio
JP3432779A 1979-03-26 1979-03-26 Backing-up method of controller of process conrol system Pending JPS55127602A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3432779A JPS55127602A (en) 1979-03-26 1979-03-26 Backing-up method of controller of process conrol system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3432779A JPS55127602A (en) 1979-03-26 1979-03-26 Backing-up method of controller of process conrol system

Publications (1)

Publication Number Publication Date
JPS55127602A true JPS55127602A (en) 1980-10-02

Family

ID=12411051

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3432779A Pending JPS55127602A (en) 1979-03-26 1979-03-26 Backing-up method of controller of process conrol system

Country Status (1)

Country Link
JP (1) JPS55127602A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6043704A (en) * 1983-08-22 1985-03-08 Hitachi Ltd Plant controller

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6043704A (en) * 1983-08-22 1985-03-08 Hitachi Ltd Plant controller

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