| 摘要 |
<p>PROBLEM TO BE SOLVED: To minimize an error generated at the time of unit system switching in a system capable of setting an input value in a plurality of unit systems. SOLUTION: When it is judged that an initial display value and a present display value in a 'mm unit system' are different in a step S205, it can be judged that an explicit change of a set value is present. Then, a central processing unit calculates the initial display value in a new unit system (inch unit system) on the basis of a conversion relational formula between mm and inch and the present display value in the 'mm unit system' (S206). On the other hand, when it is judged that the initial display value and the present display value are equal in the step S205, it can be judged that no explicit change of the set value has been made. Then, the central processing unit loads a preceding value in the 'inch unit system' held in a storage device as the initial display value in the new unit system (inch unit system) (S207).</p> |
