| 摘要 |
<P>PROBLEM TO BE SOLVED: To automatically check whether or not a new control program or data are normally written in a processing for rewriting an EEPROM with an operation control program or data written therein. <P>SOLUTION: A control part 30 rewrites, when it detects connection of an EPROM 34 to an I/O port, the content of the EEPROM 32 based on its content with checking. In the subsequent general mode, the control part compares check data 3 of an area C with data obtained by reversing each bit of check data 2, determines that the check data 2 are right when the comparison result is matched, thereby determining that the rewriting is normally ended, and controls the quality of the rewritten operation control program based on the addition result of addition of the data value of the check data 2 to the total sum of every predetermined bite of the data value of the operation control program stored in an area B. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
