JPS5235957A - Control unit selecting system - Google Patents
Control unit selecting systemInfo
- Publication number
- JPS5235957A JPS5235957A JP50111919A JP11191975A JPS5235957A JP S5235957 A JPS5235957 A JP S5235957A JP 50111919 A JP50111919 A JP 50111919A JP 11191975 A JP11191975 A JP 11191975A JP S5235957 A JPS5235957 A JP S5235957A
- Authority
- JP
- Japan
- Prior art keywords
- control unit
- unit selecting
- selecting system
- cpu
- hierarchy
- 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)
- Safety Devices In Control Systems (AREA)
Abstract
PURPOSE: To enable the system highly reliable easily by realizing the configuration of redundancy every hierarchy of control unit easily by means of selecting the control unit with abnormal operation detecting signal sent to CPU without receiving the changeover instructions from CPU.
COPYRIGHT: (C)1977,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP50111919A JPS5235957A (en) | 1975-09-16 | 1975-09-16 | Control unit selecting system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP50111919A JPS5235957A (en) | 1975-09-16 | 1975-09-16 | Control unit selecting system |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5235957A true JPS5235957A (en) | 1977-03-18 |
JPS561649B2 JPS561649B2 (en) | 1981-01-14 |
Family
ID=14573392
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP50111919A Granted JPS5235957A (en) | 1975-09-16 | 1975-09-16 | Control unit selecting system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5235957A (en) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4921814A (en) * | 1972-06-24 | 1974-02-26 | ||
JPS4921571A (en) * | 1972-04-28 | 1974-02-26 | ||
JPS5227232A (en) * | 1975-08-26 | 1977-03-01 | Nippon Telegr & Teleph Corp <Ntt> | State control system of bus select circuit |
-
1975
- 1975-09-16 JP JP50111919A patent/JPS5235957A/en active Granted
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4921571A (en) * | 1972-04-28 | 1974-02-26 | ||
JPS4921814A (en) * | 1972-06-24 | 1974-02-26 | ||
JPS5227232A (en) * | 1975-08-26 | 1977-03-01 | Nippon Telegr & Teleph Corp <Ntt> | State control system of bus select circuit |
Also Published As
Publication number | Publication date |
---|---|
JPS561649B2 (en) | 1981-01-14 |
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