LADDER FUNCTION SIMULATOR, LADDER CIRCUIT DIAGRAM EDITING DEVICE, AND LADDER FUNCTION SIMULATOR PROGRAM

摘要

PROBLEM TO BE SOLVED: To provide a ladder function simulator capable of performing operation confirmation of a function without adding any change to a program body which performs editing work to a ladder circuit diagram.SOLUTION: A function setting reception unit 1 receives specification of a function of a circuit generated in a ladder language. An input and output contact display control unit 2 displays an input contact part and an output contact part corresponding to the function received by the function setting receiving unit 1. A function processing unit 4 performs arithmetic processing of the received function on the basis of a value specified for the input contact part. An output control unit 6 displays an arithmetic processing result of the function processing unit 4 as a value of the output contact part.