| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a program display method and a programming device with which the inverse expansion processing of the same operand inside a programming device is facilitated and visual confirmation on a figure showing expression format is facilitated. SOLUTION: In case of inverse expansion from an execution program inside a PC onto the figure showing expression format (S10), the operand to appear in one circuit program is registered in the record of a related number managing table (S24). When this operand is equal to an operand appearing before, this operand is not newly registered but only the record of an item showing how many times the record is used is incremented by '1' (S25). All the operands in one circuit are completely retrieved, the completely registered related number managing table is scanned and an operand name registered in the record, of which the number of times of use is more than '2', and its record number are read out and displayed at the prescribed positions of a function block(FB) diagram (S34).</p> |
