JPS6472242A - Self-diagnosing device for computer for control - Google Patents
Self-diagnosing device for computer for controlInfo
- Publication number
- JPS6472242A JPS6472242A JP22839287A JP22839287A JPS6472242A JP S6472242 A JPS6472242 A JP S6472242A JP 22839287 A JP22839287 A JP 22839287A JP 22839287 A JP22839287 A JP 22839287A JP S6472242 A JPS6472242 A JP S6472242A
- Authority
- JP
- Japan
- Prior art keywords
- cpus
- memory area
- runaway
- information
- power
- 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
Abstract
PURPOSE:To easily study the factor of the computer runaway by knowing the internal information on a CPU right before a power supply is interrupted. CONSTITUTION:An information memory area is stored with back-up of a battery. When the runaway occurs, the watchdog times (WDT) 9 of control CPUs 2-5 work via a power supply interrupting means 11. Thus the supply of power to the CPUs 2-5 is interrupted. In this case, the memory area receives the supply of power from the battery and the contents of the memory area are held. Thus the internal information on the CPUs 2-5 are stored in the memory area when the runaway occurs and then read out to another memory area when the CPUs 2-5 are led again by an information transfer means. Thus it is possible to know the internal states of those CPUs during the runway and therefore to easily study the factor of the runaway.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP22839287A JPS6472242A (en) | 1987-09-14 | 1987-09-14 | Self-diagnosing device for computer for control |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP22839287A JPS6472242A (en) | 1987-09-14 | 1987-09-14 | Self-diagnosing device for computer for control |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6472242A true JPS6472242A (en) | 1989-03-17 |
Family
ID=16875748
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP22839287A Pending JPS6472242A (en) | 1987-09-14 | 1987-09-14 | Self-diagnosing device for computer for control |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6472242A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0773065A (en) * | 1993-09-01 | 1995-03-17 | Nec Corp | Emulator |
JP2015049731A (en) * | 2013-09-02 | 2015-03-16 | キヤノン株式会社 | Image forming apparatus, control method of image forming apparatus, and program |
-
1987
- 1987-09-14 JP JP22839287A patent/JPS6472242A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0773065A (en) * | 1993-09-01 | 1995-03-17 | Nec Corp | Emulator |
JP2015049731A (en) * | 2013-09-02 | 2015-03-16 | キヤノン株式会社 | Image forming apparatus, control method of image forming apparatus, and program |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE69231452T2 (en) | Fault-tolerant computer system with processing units that each have at least three computer units | |
ES2102979T3 (en) | INTERMEDIATE MEMORY SUBSYSTEM FOR PERIPHERAL CONTROLLERS AND ASSOCIATED PROCEDURE. | |
JPS6472242A (en) | Self-diagnosing device for computer for control | |
JPS56143032A (en) | Operation and control system for data processing system | |
JPS5731064A (en) | Space control system in direct access storage device | |
JPS5489455A (en) | Control system | |
JPS56132620A (en) | Electronic computer | |
JPS5750378A (en) | Control system of data processor | |
JPS6428735A (en) | Interruption control system | |
JPS6429946A (en) | Data processor | |
JPS5792476A (en) | Cash memory controller | |
JPS6448164A (en) | Processing end interrupt control system | |
JPS6488851A (en) | Electronic computer system | |
JPS57164318A (en) | Information processing system | |
JPS6478361A (en) | Data processing system | |
JPS5731068A (en) | Information processing device | |
JPS57201949A (en) | Secondary storage controller | |
JPS5786970A (en) | Doubled computer system | |
JPS649561A (en) | Computer | |
JPS5759220A (en) | Data transfer system | |
JPS6444565A (en) | Io module control system | |
JPS57100550A (en) | Rotary storage controller | |
JPS54112129A (en) | Access system of main memory unit | |
JPS575160A (en) | Multiple computer system | |
JPS5750039A (en) | Computer system |