Title:
FAILURE DIAGNOSING METHOD FOR CONTROLLER
Document Type and Number:
Japanese Patent JP3879492
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To solve the problem that, in conventional technology, it is impossible to save prescribed information due to the damage of a storage medium itself in the middle of the storage of the prescribed information in a controller itself when the gradient of temperature increase in an abnormal time is sharp.
SOLUTION: The internal temperature of a controller and the peripheral temperature of the controller are monitored, and when a temperature difference between them exceeds a prescribed temperature range, abnormality information is stored in the storage medium of the controller. Thus, it is possible to save prescribed information in the storage medium of the controller even when the temperature gradient is sharp.
Inventors:
To Tanabe
Application Number:
JP2001350915A
Publication Date:
February 14, 2007
Filing Date:
November 16, 2001
Export Citation:
Assignee:
株式会社日立製作所
International Classes:
G05B23/02; G06F1/20; G06F11/00; G06F11/30; (IPC1-7): G05B23/02
Domestic Patent References:
| JP6119068A | ||||
| JP2001211559A | ||||
| JP9196527A | ||||
| JP8220279A | ||||
| JP9145553A | ||||
| JP7200073A | ||||
| JP7200074A |
Attorney, Agent or Firm:
Manabu Inoue
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