Standardizing Heterogeneous PLC Communication: An Open-Source Approach with Python and Modbus TCP

https://doi.org/10.58571/CNCA.AMCA.2025.048

Resumen: The problem addressed in this project is the interconnectivity between different PLCs to avoid brand lock-in. Currently, this type of connection is a challenge for manufacturers, as existing solutions involve high costs and vendor dependencies. A simple and low-cost solution is needed to reuse PLCs. Python is used as the central system, acting as a conductor and communicating with each component via Modbus TCP. To visualize and manage them, an interface is created with PySide/Qt Designer in SCADA format. The results support the use of both new and semi-used equipment with Modbus communication, reducing costs, facilitating use for training purposes and including Industry 4.0 applications.

¿Cómo citar?

García Contreras, J., Villafuerte de Gortari, J., Arango-Ramirez, J. & Ramirez-Neria, M. (2025). Standardizing Heterogeneous PLC Communication: An Open-Source Approach with Python and Modbus TCP. Memorias del Congreso Nacional de Control Automático 2025, pp. 280-285. https://doi.org/10.58571/CNCA.AMCA.2025.048

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