Implementation of Ladder Diagram Edit Module of Soft PLC Development System
Jie Wang
Abstract
Jie Wang
Abstract
This paper presents an approach of editing ladder diagram,which can be used to develop the editor of the Soft PLC with the C++language successfully.The software provides the fuctions of drawing,editing,saving and opening ladder diagram,and its advantages are as follow: the structure of the software is relatively simple;the parameters of the PLC device unit can be directly set on the ladder diagram;with uniform standards and good scalability;the complex PLC ladder diagram can be intuitively expressed.
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This paper presents an approach of editing ladder diagram,which can be used to develop the editor of the Soft PLC with the C++language successfully.The software provides the fuctions of drawing,editing,saving and opening ladder diagram,and its advantages are as follow: the structure of the software is relatively simple;the parameters of the PLC device unit can be directly set on the ladder diagram;with uniform standards and good scalability;the complex PLC ladder diagram can be intuitively expressed.
Key concepts: Ladder logic, Diagram, Scalability, Simple (philosophy), Set (abstract data type), Software, Computer science, Engineering drawing