Local Storage of Data from the Production Process

Abstract

This paper presents the design and implementation of a local data storage system for process data acquired from a model of a manufacturing line. The line is controlled by a PLC, for which a custom control program was developed. Process data are collected and visualized using the Promotic SCADA system, which also handles data logging. The application enables both monitoring and basic control of the production line in real time. Collected data are stored in structured text files, organized into folders by time or batch, allowing for easy access and analysis. This work provides an overview of key industrial automation technologies, including PLC programming languages, SCADA systems, and data handling methods. Special focus is given to the Promotic environment and its capabilities in educational and small-scale industrial scenarios. The system was tested on a school-scale production model and proved reliable and suitable for pedagogical use. Challenges related to communication and data integrity were addressed and resolved. The final solution is cost-effective, simple to maintain, and serves as a foundation for further development or integration with external systems.