JPS5478945A - Process control computer system - Google Patents
Process control computer systemInfo
- Publication number
- JPS5478945A JPS5478945A JP14622277A JP14622277A JPS5478945A JP S5478945 A JPS5478945 A JP S5478945A JP 14622277 A JP14622277 A JP 14622277A JP 14622277 A JP14622277 A JP 14622277A JP S5478945 A JPS5478945 A JP S5478945A
- Authority
- JP
- Japan
- Prior art keywords
- computer
- comp
- process control
- function
- auxiliary memory
- 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
Links
Landscapes
- Hardware Redundancy (AREA)
- Multi Processors (AREA)
- Feedback Control In General (AREA)
- Safety Devices In Control Systems (AREA)
Abstract
PURPOSE: To prevent the system function from being lowered at computer failure, by providing the auxiliary memory storing the content of the main memory of the control computer and the computer monitoring the condition of operation of computer, in the process control system of multi-constitution.
CONSTITUTION: The process control computers COMP-1...COMP-N... control the specified process P. The COMP-B is a back up computer, which monitors the working condition of COMP-1... . From the content of the main memory of each process control computer, the image required for the operating condidion required for leading of the back up operation especially is memorized in the auxiliary memory SM. When the back up computer COMP-B recognizes the occurrence of failure in either of the process control computers, the input and output to the process P of the computer is selected to COMP-B side, from the auxiliary memory SM, the operation image required for the function image of the failed computer and leading is loaded, the function of the failed computer is substituted, thereby preventing the function of the overall system from being lowered.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP52146222A JPS5936784B2 (en) | 1977-12-06 | 1977-12-06 | Process control computer system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP52146222A JPS5936784B2 (en) | 1977-12-06 | 1977-12-06 | Process control computer system |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5478945A true JPS5478945A (en) | 1979-06-23 |
JPS5936784B2 JPS5936784B2 (en) | 1984-09-05 |
Family
ID=15402862
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP52146222A Expired JPS5936784B2 (en) | 1977-12-06 | 1977-12-06 | Process control computer system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5936784B2 (en) |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5614302A (en) * | 1979-07-13 | 1981-02-12 | Hitachi Ltd | Process control system |
JPS5654553A (en) * | 1979-10-08 | 1981-05-14 | Hitachi Ltd | Stand-by switching system |
JPS56103707A (en) * | 1980-01-22 | 1981-08-19 | Toshiba Corp | Monitor and control system for plant |
JPS575162A (en) * | 1980-06-13 | 1982-01-11 | Tokyo Electric Power Co Inc:The | Redundant system controller |
JPS57185511A (en) * | 1981-05-11 | 1982-11-15 | Sharp Corp | Loader for sequence controller |
JPS5826504A (en) * | 1981-08-05 | 1983-02-17 | Mitsubishi Electric Corp | Controlling device for electric vehicle |
JPS592102A (en) * | 1982-06-29 | 1984-01-07 | Oki Electric Ind Co Ltd | Operation controlling system of internal combustion engine |
JPS5943451A (en) * | 1982-09-02 | 1984-03-10 | Ohkura Electric Co Ltd | Signal processor with intelligent stand-by function |
JPS59117602A (en) * | 1982-12-24 | 1984-07-07 | Hitachi Ltd | Backup controller of n:1 |
JPS6011901A (en) * | 1983-06-30 | 1985-01-22 | Toshiba Corp | Back-up device of decentralized controller |
JPS6015748A (en) * | 1983-07-08 | 1985-01-26 | Hitachi Ltd | Mutual link type ring forming system |
-
1977
- 1977-12-06 JP JP52146222A patent/JPS5936784B2/en not_active Expired
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5614302A (en) * | 1979-07-13 | 1981-02-12 | Hitachi Ltd | Process control system |
JPS5654553A (en) * | 1979-10-08 | 1981-05-14 | Hitachi Ltd | Stand-by switching system |
JPS56103707A (en) * | 1980-01-22 | 1981-08-19 | Toshiba Corp | Monitor and control system for plant |
JPS6321929B2 (en) * | 1980-06-13 | 1988-05-10 | Tokyo Denryoku Kk | |
JPS575162A (en) * | 1980-06-13 | 1982-01-11 | Tokyo Electric Power Co Inc:The | Redundant system controller |
JPS57185511A (en) * | 1981-05-11 | 1982-11-15 | Sharp Corp | Loader for sequence controller |
JPS5826504A (en) * | 1981-08-05 | 1983-02-17 | Mitsubishi Electric Corp | Controlling device for electric vehicle |
JPH0261201B2 (en) * | 1981-08-05 | 1990-12-19 | Mitsubishi Electric Corp | |
JPS592102A (en) * | 1982-06-29 | 1984-01-07 | Oki Electric Ind Co Ltd | Operation controlling system of internal combustion engine |
JPS5943451A (en) * | 1982-09-02 | 1984-03-10 | Ohkura Electric Co Ltd | Signal processor with intelligent stand-by function |
JPS59117602A (en) * | 1982-12-24 | 1984-07-07 | Hitachi Ltd | Backup controller of n:1 |
JPS6011901A (en) * | 1983-06-30 | 1985-01-22 | Toshiba Corp | Back-up device of decentralized controller |
JPS6015748A (en) * | 1983-07-08 | 1985-01-26 | Hitachi Ltd | Mutual link type ring forming system |
Also Published As
Publication number | Publication date |
---|---|
JPS5936784B2 (en) | 1984-09-05 |
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