JPS5430383A - Back-up system of digital process controlling apparatus - Google Patents
Back-up system of digital process controlling apparatusInfo
- Publication number
- JPS5430383A JPS5430383A JP9511477A JP9511477A JPS5430383A JP S5430383 A JPS5430383 A JP S5430383A JP 9511477 A JP9511477 A JP 9511477A JP 9511477 A JP9511477 A JP 9511477A JP S5430383 A JPS5430383 A JP S5430383A
- Authority
- JP
- Japan
- Prior art keywords
- controlling apparatus
- digital process
- process controlling
- reserve
- upper grade
- 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 obtain a back-up system which is small expensive and has a reliability irrespective of the increas e of the system scale by arranging reserve sub-computers in the systemin which an upper grade calculator controls a plurality of subcomputers and by allowing the upper grade calculator to switch to the reserve, when a subcomuputer gets out of order.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9511477A JPS5430383A (en) | 1977-08-10 | 1977-08-10 | Back-up system of digital process controlling apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9511477A JPS5430383A (en) | 1977-08-10 | 1977-08-10 | Back-up system of digital process controlling apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5430383A true JPS5430383A (en) | 1979-03-06 |
Family
ID=14128809
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9511477A Pending JPS5430383A (en) | 1977-08-10 | 1977-08-10 | Back-up system of digital process controlling apparatus |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5430383A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5760404A (en) * | 1980-09-29 | 1982-04-12 | Omron Tateisi Electronics Co | Output unit of programmable logic controller |
JPS598063A (en) * | 1982-07-07 | 1984-01-17 | Hitachi Ltd | N:1 backup method of decentralized hierarchical system |
US4850027A (en) * | 1985-07-26 | 1989-07-18 | International Business Machines Corporation | Configurable parallel pipeline image processing system |
US6148415A (en) * | 1993-06-11 | 2000-11-14 | Hitachi, Ltd. | Backup switching control system and method |
-
1977
- 1977-08-10 JP JP9511477A patent/JPS5430383A/en active Pending
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5760404A (en) * | 1980-09-29 | 1982-04-12 | Omron Tateisi Electronics Co | Output unit of programmable logic controller |
JPH027083B2 (en) * | 1980-09-29 | 1990-02-15 | Omron Tateisi Electronics Co | |
JPS598063A (en) * | 1982-07-07 | 1984-01-17 | Hitachi Ltd | N:1 backup method of decentralized hierarchical system |
JPS6250857B2 (en) * | 1982-07-07 | 1987-10-27 | Hitachi Ltd | |
US4850027A (en) * | 1985-07-26 | 1989-07-18 | International Business Machines Corporation | Configurable parallel pipeline image processing system |
US6148415A (en) * | 1993-06-11 | 2000-11-14 | Hitachi, Ltd. | Backup switching control system and method |
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