PLC AND SCADA BASED AUTOMATED SYSTEMS

Abstract

The objective of our project is to design, develop and monitor PLC and SCADA based automated systems. PLC and SCADA have great impact on future of industrial as well as commercial control system. This thesis focuses on industrial as well as commercial automation based on PLC and SCADA. The first part of thesis focuses on Industrial based project PLC based diesel generator synchronization, whereas second part of thesis is PLC based water bottle filling station which is a commercial implementation. Large-scale industries are facing high interruptions in work due to unstable electricity supply. These industries become less efficient and require a continuous power supply. Whenever a power failure is considered, most industries use the generator for a backup power supply. To fully meet the load demand in large-scale industries, many generators are used, and controlling the number of generators manually is not possible. Also, manual synchronization will take more time to switch the load, resulting in power loss. This is overpowered by using various controllers like PLC, PIC microcontroller, Arduino, etc., to change the generators automatically and provide a continuous power supply to the load and ensures fast switching of loads between transformers and diesel generator. This research focused on calculation of ratings of circuit breakers, transformers and diesel generator with interlocking scheme of generators and transformers using a programmable logic controller (PLC). PLC programming is done Tia portal and HMI is designed in Tia portal for monitoring of the system for fast switching of loads between transformers and diesel generator. Universities have a social responsibility to address environmental issues, and they can play unique role in a sustainable society. Among the various environmental issues plastic waste is one of the biggest problems. The aim of this project is to reduce the use of plastic bottles and to prevent waste water. The designed system provides total water consumption and total value. of stored bottles. The system also monitors individual water use. The filling is based on the user-defined volume in which the user can select the volume of the liquid to be filled. The system is designed using PLC (programmable logic controller), HMI (Human Interface System), Solenoid Valve, Relays, MCB, Indicators and pressure buttons. Filling of water bottle is controlled by PLC using the ladder logic method.