| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a controller operable by a low order means even if a high order means is out of order or in maintenance service. <P>SOLUTION: In the controller equipped with the high order means 101 for creating an operation table for an object 100 to be controlled and the low order means 102 for controlling the object 100 to be controlled in the operation table, the high order means 101 has a production data base 1 and a high order side operation table data base 2 in which a plurality of operation tables created of the production data base 1 are stored, and the low order means 102 is provided with a low order side operation table data base 4 for receiving the operation tables from the high order means 101 and storing them, an extraction part 6 for extracting the operation table necessary for the object 100 to be controlled from the low order side operation table data base 4, and an instruction part 7 for controlling the object 100 to be controlled in the extracted operation table when it is detected that the high order means 101 is out of order. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
