“Prototipo de Control y Monitoreo para una Máquina Campaneadora IPM BA500”
Law-Wan, Ching Yee
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The traditional coupling technology for PVC water pipes consists in attaching a belling end with a normal end of another tube, applying paste for PVC. However it has been reached to the conclusion that this method is not ideal due to the tendency to create leaks because of pressure. Therefore, research and development works led to what is known as the RIEBER System. This system consists basically on a special belling of the PVC tubes, where metallic packing covered with rubber is incorporated. This allows joining to tubes without the necessity to use paste for PVC, the two ends are coupled by means of pressure. At the moment most of the belling machines are designed to do belling without packing. For this reason, it becomes necessary to carry out a conversion in these machines. Additionally, to implement the conversion of these machines to the new system it is appealed to the employment of several makers PLC´s. In general, incompatibilities exist between the I/O interfaces among PLC´s. In this project the control and simulation of a belling machine with high level programming (InControl and InTouch) was developed. This allows reusing the generated code without a great effort. Avoiding the dependence of the PLC manufacturers and their incompability of programming languages, that causes of having to generate new code for the control of a specific process. The software used in the project also offers programming flexibility, since it allows the use and interaction of diverse programming languages like: Relay Logic Ladder (RLL), Structured text and Sequential Function Chart (SFC).
Proyecto de Graduación (Bachillerato en Ingeniería Electrónica) Instituto Tecnológico de Costa Rica. Escuela de Ingeniería Electrónica, 2001.