Design and Implementation of Automated Tablet Filler Prototype for Pharmaceutical Application using PLC

This project implements a prototype of commercial tablet counting and filling machine for pharmaceutical application, controlled using Programmable Logic Controller ( PLC ). In the first study, the operation system of the counting cum filling machine is designed and developed. It is the geared DC motor based, controlled by switching of sensor through PLC. Secondly, the conveyor system for feeding the bottles for the tablet filling process is designed and developed, which is also based on a geared DC motor. A sensor near the filling station on the conveyor, senses the arrival of bottle and stops the conveyor. Simultaneously it initiates/triggers the counting/filling module to fill the arrived bottle in station. Then conveyor starts and carries the filled bottle. Arrangements were made to feed the bottles to conveyor and to store the filled bottles taking off the conveyor. The entire process is completely automated using PLC. The programming language used is Ladder Diagram (LD), which is quite easy to understand the dataflow and easier to modify the functionality.