Rodrigues, Romário, and Luiz Fernando Terazzi. “PROCESS IMPROVEMENT VIA PROGRAMMABLE LOGIC CONTROLLER: an Analysis of Modicon M221 Applications in Industry 4.0: Análise De aplicações Do Modicon M221 Na Indústria 4.0”. Revista Interface Tecnológica 22, no. 2 (December 20, 2025): 727–737. Accessed May 3, 2026. https://revista.fatectq.edu.br/interfacetecnologica/article/view/2270.