JPS5640901A - Backup method of process control - Google Patents
Backup method of process controlInfo
- Publication number
- JPS5640901A JPS5640901A JP11568979A JP11568979A JPS5640901A JP S5640901 A JPS5640901 A JP S5640901A JP 11568979 A JP11568979 A JP 11568979A JP 11568979 A JP11568979 A JP 11568979A JP S5640901 A JPS5640901 A JP S5640901A
- Authority
- JP
- Japan
- Prior art keywords
- control
- program
- backup
- unit
- emergent
- 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
Links
Landscapes
- Feedback Control In General (AREA)
- Safety Devices In Control Systems (AREA)
Abstract
PURPOSE: To perform an adequate treatment according to the degree of necessity for backup and without giving any hindrance to the process, by securing a mutual storage of the program which works when an emergent backup is required in each of several computers.
CONSTITUTION: Arithmetic control unit 13A gives a control to the process 12A at the normal time by the control program A. And in case when the unit 13A has some breakdown under the control of the particularly important item of the process 12A and when no short break is allowed, the emergency information JA is given to the main memory 18B within the arithmetic processor 13B to start the emergent control program KA within the bulk 16B. In case when the unit 13A becomes faulty under the normal control, the processor 13B carries out the control program B and at the same time performs the initialization of the process A system. After this, the program A is started. In this way, both the quick comformity and the reliability are enhanced for the backup.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11568979A JPS5640901A (en) | 1979-09-11 | 1979-09-11 | Backup method of process control |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11568979A JPS5640901A (en) | 1979-09-11 | 1979-09-11 | Backup method of process control |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5640901A true JPS5640901A (en) | 1981-04-17 |
Family
ID=14668810
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11568979A Pending JPS5640901A (en) | 1979-09-11 | 1979-09-11 | Backup method of process control |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5640901A (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5864502A (en) * | 1981-10-15 | 1983-04-16 | Hitachi Ltd | Plant decentralized control method |
JPS595302A (en) * | 1982-07-02 | 1984-01-12 | Hitachi Ltd | Plant dispersion controlling method |
JPS5936801A (en) * | 1982-08-26 | 1984-02-29 | Yamatake Honeywell Co Ltd | Backup method in duplex controlling system |
JPS5975861A (en) * | 1982-10-22 | 1984-04-28 | 株式会社日立製作所 | Train operation control system |
JPS59231601A (en) * | 1983-06-15 | 1984-12-26 | Hitachi Ltd | Robot controlling method |
JPS6022202A (en) * | 1983-07-19 | 1985-02-04 | Hitachi Ltd | Control system |
JPS60183603A (en) * | 1984-03-02 | 1985-09-19 | Hitachi Ltd | Multi-loop decentralized control method |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52130543A (en) * | 1976-04-27 | 1977-11-01 | Toshiba Corp | Multi-computer system |
-
1979
- 1979-09-11 JP JP11568979A patent/JPS5640901A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52130543A (en) * | 1976-04-27 | 1977-11-01 | Toshiba Corp | Multi-computer system |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5864502A (en) * | 1981-10-15 | 1983-04-16 | Hitachi Ltd | Plant decentralized control method |
JPH0346841B2 (en) * | 1981-10-15 | 1991-07-17 | Hitachi Ltd | |
JPS595302A (en) * | 1982-07-02 | 1984-01-12 | Hitachi Ltd | Plant dispersion controlling method |
JPS5936801A (en) * | 1982-08-26 | 1984-02-29 | Yamatake Honeywell Co Ltd | Backup method in duplex controlling system |
JPS5975861A (en) * | 1982-10-22 | 1984-04-28 | 株式会社日立製作所 | Train operation control system |
JPS59231601A (en) * | 1983-06-15 | 1984-12-26 | Hitachi Ltd | Robot controlling method |
JPH0519721B2 (en) * | 1983-06-15 | 1993-03-17 | Hitachi Ltd | |
JPS6022202A (en) * | 1983-07-19 | 1985-02-04 | Hitachi Ltd | Control system |
JPH0571963B2 (en) * | 1983-07-19 | 1993-10-08 | Hitachi Ltd | |
JPS60183603A (en) * | 1984-03-02 | 1985-09-19 | Hitachi Ltd | Multi-loop decentralized control method |
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