Automation of water heaters in PlC-based water process trainerDaeng Rahmatullah, Reza Rahmadian, As’ad Shidqy Aziz, Fendi Achmad and M. Ibrahim Nur HidayatullahEPJ Web Conf., 344 (2025) 01011DOI: https://doi.org/10.1051/epjconf/202534401011