Alim ATS, Sudiarto B. Economic analysis of variable speed drive control through profinet technology on distributed control system: A case study in essential oil processing factories. JPTK [Internet]. 2023May30 [cited 2024Nov.6];6(2):129-38. Available from: https://jptk.ppj.unp.ac.id/index.php/jptk/article/view/321