JPS5587256A - Fault informing system - Google Patents
Fault informing systemInfo
- Publication number
- JPS5587256A JPS5587256A JP15933878A JP15933878A JPS5587256A JP S5587256 A JPS5587256 A JP S5587256A JP 15933878 A JP15933878 A JP 15933878A JP 15933878 A JP15933878 A JP 15933878A JP S5587256 A JPS5587256 A JP S5587256A
- Authority
- JP
- Japan
- Prior art keywords
- fault
- contents
- area
- period
- occurrence
- 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
- Debugging And Monitoring (AREA)
Abstract
PURPOSE: To exercise secure fault control by reading the contents of a fault-occurrence communication area at fixed period T1 by a master processor, and by writing non-fault information in a corresponding area at every shorter than T1 when no fault is occurring to a slave processor while writing fault-occurrence information when a fault is detected.
CONSTITUTION: In every normal fixed period T1, master processor MCP reads the contents of fault-occurrence communication area A of each slave processor is memory MM and when the contents show a communication pattern, the contents of corresponding fault-content communication area D are read and a needed fault control job is done. Here, period T2 when a slave processor writes non-fault information should be shorter than period T1. Further, when the contents of area A are in an initial set state, it is judged that memory writing operation is impossible.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15933878A JPS5587256A (en) | 1978-12-26 | 1978-12-26 | Fault informing system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15933878A JPS5587256A (en) | 1978-12-26 | 1978-12-26 | Fault informing system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5587256A true JPS5587256A (en) | 1980-07-01 |
Family
ID=15691640
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15933878A Pending JPS5587256A (en) | 1978-12-26 | 1978-12-26 | Fault informing system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5587256A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5023779A (en) * | 1982-09-21 | 1991-06-11 | Xerox Corporation | Distributed processing environment fault isolation |
-
1978
- 1978-12-26 JP JP15933878A patent/JPS5587256A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5023779A (en) * | 1982-09-21 | 1991-06-11 | Xerox Corporation | Distributed processing environment fault isolation |
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