JPS55116150A - Fault detection system for processor - Google Patents
Fault detection system for processorInfo
- Publication number
- JPS55116150A JPS55116150A JP2271279A JP2271279A JPS55116150A JP S55116150 A JPS55116150 A JP S55116150A JP 2271279 A JP2271279 A JP 2271279A JP 2271279 A JP2271279 A JP 2271279A JP S55116150 A JPS55116150 A JP S55116150A
- Authority
- JP
- Japan
- Prior art keywords
- unit
- data
- processor
- processors
- patterns
- 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
- Hardware Redundancy (AREA)
Abstract
PURPOSE: To obtain a fault supervisory system which does not require any special control bus by sending fixed data from a supervisory unit to processors via a signal bus at constant intervals, and then by discriminating sent-back data from respective processors.
CONSTITUTION: Between supervisory unit SP and processors P0, P1...Pn, data of a special pattern are transferred at constant intervals via signal bus BUS. As for data patterns, there are two kinds of patterns, a pattern of which a processor when receiving data A from unit SP sends back the received signal A as it is to unit SP and that of which the processor sends back data B received from unit SP to unit SP by converting to data C. Unit SP sends two patterns in the order of processors P0→P1...Pn→P0→P1 and when the sent-back data is any othe one than A and C, the processor is judged to be abnormal to display that on fault information display unit DSP.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2271279A JPS55116150A (en) | 1979-02-28 | 1979-02-28 | Fault detection system for processor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2271279A JPS55116150A (en) | 1979-02-28 | 1979-02-28 | Fault detection system for processor |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55116150A true JPS55116150A (en) | 1980-09-06 |
Family
ID=12090435
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2271279A Pending JPS55116150A (en) | 1979-02-28 | 1979-02-28 | Fault detection system for processor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55116150A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57166458U (en) * | 1981-04-13 | 1982-10-20 | ||
JPS62200431A (en) * | 1986-02-27 | 1987-09-04 | Nec Corp | Processor aliveness or death identification system in distributed processing system |
JPS63183254A (en) * | 1987-01-15 | 1988-07-28 | ローベルト・ボッシュ・ゲゼルシャフト・ミット・ベシュレンクテル・ハフツング | Monitor for computer system with two processor |
JPH0227442A (en) * | 1988-07-15 | 1990-01-30 | Nec Corp | Fault detecting system |
JPH0484336A (en) * | 1990-07-27 | 1992-03-17 | Nec Corp | Fault resistive data processor |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5295138A (en) * | 1976-02-06 | 1977-08-10 | Hitachi Ltd | Data processing system |
JPS5295944A (en) * | 1976-02-06 | 1977-08-12 | Nec Corp | Mutual observation |
-
1979
- 1979-02-28 JP JP2271279A patent/JPS55116150A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5295138A (en) * | 1976-02-06 | 1977-08-10 | Hitachi Ltd | Data processing system |
JPS5295944A (en) * | 1976-02-06 | 1977-08-12 | Nec Corp | Mutual observation |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57166458U (en) * | 1981-04-13 | 1982-10-20 | ||
JPS6338598Y2 (en) * | 1981-04-13 | 1988-10-12 | ||
JPS62200431A (en) * | 1986-02-27 | 1987-09-04 | Nec Corp | Processor aliveness or death identification system in distributed processing system |
JPS63183254A (en) * | 1987-01-15 | 1988-07-28 | ローベルト・ボッシュ・ゲゼルシャフト・ミット・ベシュレンクテル・ハフツング | Monitor for computer system with two processor |
JPH0227442A (en) * | 1988-07-15 | 1990-01-30 | Nec Corp | Fault detecting system |
JPH0484336A (en) * | 1990-07-27 | 1992-03-17 | Nec Corp | Fault resistive data processor |
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