LADDER PROGRAMMING DEVICE AND ITS METHOD

摘要

PROBLEM TO BE SOLVED: To improve the work efficiency of the generation of a ladder circuit diagram and to reduce a bug generation rate in a ladder program by calling a partial ladder circuit diagram which is temporarily stored in a storage part and copying it in the ladder circuit diagram. SOLUTION: A ladder circuit diagram generation part 2a arranges a ladder parts diagram on a ladder circuit generation screen displayed by a display part 1 based on a prescribed procedure and generates a ladder circuit diagram. A partial ladder circuit diagram storage part 4a adds a partial ladder circuit number to a partial ladder circuit diagram designated by a designation part 2b and temporarily stores it. A copying part 2c instructs a partial ladder circuit number, calls the partial ladder circuit diagram which is temporarily stored in the partial ladder circuit storage part 4a and copies it in the ladder circuit diagram in the middle of generation. An address setting part 2d sets an address in the arranged ladder parts diagram. A ladder program generation part 2e generates a ladder program based on the ladder circuit diagram which is address-set.