This work consists of the automation and control of gallon filling for the liquid soap manufacturing process, consisting of 3 tanks fed by the main tank containing the raw material. The system is mainly composed of a conveyor belt where a detection sensor is incorporated, which activates a servo motor to position the gallon in the desired place for filling through an electro valve. Also, the level required in each gallon is measured with a capacitive sensor, all these actions are controlled by the PLC which allows the operator to manipulate and interact with the system to perform storage and dosing operations automatically or manually. As a result, the automated system will increase productivity, reduce operating costs, improve process safety, and optimize human resources.