| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a programmable controller system that have a programmable controller and a programming tool connected to each other, can defragment memory areas when adding variables and thereby secure consecutive areas. <P>SOLUTION: A programming tool 10 generates reallocating information according to which destinations of allocation of variables in a data memory 24 are altered so as to make usable areas within the data memory 24 of a programmable controller which are allocated to the variables consecutive, acquires changed positions of execution codes of a program ensuing from the reallocation of variables as change information, and transmits the information to the programmable controller. The programmable controller rewrites execution codes of a program in a program memory 22 on the basis of the change information from the programming tool 10, and at the same time shifts data stored at pre-change addresses of allocated locations in the data memory 24 on the basis of the reallocating information. <P>COPYRIGHT: (C)2013,JPO&INPIT</p> |
