PURPOSE: To improve serviceability and the efficiency of the development of software by storing data representing a stage operation in which abnormality occurs and the kind of abnormality when a control part detects the abnormality, and enabling the information of the data to be fetched at need even after informing the abnormality.
CONSTITUTION: Courses from the application of a power source switch 5 to the start of a washing course in a washing machine, etc., such as temporary interruption, a cloth amount measuring course, a washing course, etc., are expressed in course numbers, respectively. Also, a water supply operation, a washing operation, a drainage operation, etc., in the course are expressed in operation numbers, and water supply abnormality, drainage abnormality, etc., in abnormality numbers. Then, all course operations in which the abnormality occur and the kinds of the abnormality are expressed in three digits or characters. When the abnormality occurs, the information of three digits for the abnormality is stored in the memory of a computer 1, and the abnormality is informed. After that, ordinary display is interrupted by depressing a prescribed switch at an operating part 4, and a value stored in the memory is displayed on a display part 3. In such a way, it is possible to quickly find out the cause of the abnormality, and to improve the serviceability and the efficiency in the development of the software.
SUZUKI TOSHIO
SHINKO YASUSHI
