Review Paper on PLC & Its Applications in Automation Plants

ABSRACT: The basic task performed is filling up of water bottles. The filling operation is done using PROGRAMABLE LOGIC CONTROLLERS (PLC). We are using plc because they are flexible, easy to program and space efficient. Such filling task is performed in beverage industry, mineral water bottling plant etc. In our project bottles are placed on the conveyor belt one at a time and then they get filled. The user can input the volume that is needed to be filled in the bottles. The opening and closing of the inlet to the bottle is controlled by solenoid valve. Filling process takes place in a synchronized manner. Thus it is time saving and flexible process. Inductive type proximity sensors are used for the detection of the water bottles at the end and starting point of the conveyor and also below the water inlet. The entire system can be controlled using PLC. SCADA (Supervisory Control And Data Acquisition) will be used for visual representation of the bottling plant.