Sistema de Control Automático y Monitorización del Sistema de Suministro de Agua de la Planta Este de Trimpot Electrónicas Ltda.
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The Project was made in TRIMPOT ELECTRONICAS Ltda. This is an electronical components manufacturing enterprise. The East plant has a water supply system conformed by a deep well pump which feeds two capture tanks automatically and feeds manually an emergency tank. The level control systems of the tanks was installed more than 25 years ago and it has undergone many modifications due to component failures. Furthermore, it did not have any monitoring system interface, which allowed observing and controlling the actuators, besides identifying failures generating alarm messages on the computer screen. In this project, the control system for filling the process tanks was updated and improved, and the emergency tank was included in the control system. This was done with an Omron PLC controlled by ultrasonic sensors, flow sensors and pressure transmitters. The sequence also considers the time to decrease the probability that the well pump will start in the peak period of CNFL billing and increase in the night period An application was also designed in LabVIEW that communicates with the PLC via FINS / UDP, Omron protocol, with which it is possible to monitor the status of tank levels and volumes, pressures and specific pipeline flows, remotely control the solenoid valves and the deep well pump, perform configurations and also displays system alerts. Finally, a database was implemented in Microsoft Access, which carries a record of some variables of the system, which communicates with the LabVIEW application through an ODBC.
Proyecto de Graduación (Licenciatura en Ingeniería en Mantenimiento Industrial) Instituto Tecnológico de Costa Rica, Escuela de Ingeniería en Mantenimiento Industrial, 2016.