The programming device null programmable controller of the sequence program conversion device,

摘要

PROBLEM TO BE SOLVED: To restore the definition/declare information of the array or structural body in converting a sequence program including the definition/declare information of an array or structural body from a machine code format into a format to be used when created/changed by a user.;SOLUTION: In a sequence program converter, the definition/declare information of an array or structural body to be used by a sequence program is converted into a machine code which does not have any influence on execution in a machine code format by a definition/declare information conversion part, and the start position and end position of the corresponding machine code in the machine code format is added with the machine code which does not affect execution indicating the start/end with respect to an operand as the element of the array or structural body by an array/structural body operand instruction conversion part.;COPYRIGHT: (C)2008,JPO&INPIT