PLC Interfacing Using Visual Basic

Mohd Herman, Mohd Aris (2008) PLC Interfacing Using Visual Basic. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

The usage of Graphical User Interface in industrial has become wider. The most commen usage of GUI is as communication between PLC and PC. Without using supplier provided software, a GUI project has been developed. The project is about designing and developing an interfacing system for a PLC process. It includes researches and learning about the things which is related to the system. Basically the system is designed due to the widely usage of PLC nowdays. Upon completing the system, Visual Basic is used as the programming tool for the interface while a parallel port is used as the communication between PC and PLC in order to send and receive data. The functions of the system is to simulate and control a PLC process. Within this system, it provides an optional to reconfigure the PLC process such as the process delay, process sequence and others. Besides that the project is also to creat a specific interfacing system for a specific PLC process such as the traffic light system and material mixer tank system. In overall, the project provides an alternative system to replace the usage of PLC ladder diagram as the PLC process display.

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