Perancangan Perancangan Simulasi Sistem Kontrol Otomatis pada Tangki Penampungan (Reservoir) WTP PPSDM Migas Menggunakan PLC Omron
DOI:
https://doi.org/10.37525/sp/2026-2/2521Kata Kunci:
Otomatisasi, Chemical Dosing, PLC Omron, HMI, WTP PPSDM Migas.Abstrak
Efisiensi dan keselamatan kerja merupakan prioritas utama dalam operasional industri minyak dan gas bumi, termasuk pada unit utilitas pendukung seperti Water Treatment Plant (WTP). Saat ini, proses pencampuran bahan kimia ( chemical dosing ) pada WTP PPSDM Migas Cepu masih dijalankan secara manual, yang berpotensi menimbulkan ketidakkonsistenan takaran solusi dan risiko keselamatan akibat kontak langsung operator dengan bahan kimia. Penelitian ini bertujuan untuk merancang simulasi sistem kontrol otomatis berbasis Programmable Logic Controller (PLC) Omron guna mengoptimalkan proses persiapan bahan kimia koagulan, flokulan, dan desinfektan. Metode penelitian yang digunakan adalah perancangan logika kendali (Ladder Diagram) menggunakan perangkat lunak CX-Programmer dan visualisasi Human Machine Interface (HMI) menggunakan CX-Designer . Sistem dirancang dengan mekanisme pemrosesan batch sekuensial yang mengintegrasikan sensor Level Switch (LSL/LSH), pompa, dan mixer secara otomatis. Hasil simulasi menunjukkan bahwa sistem mampu melakukan pengisian, pencampuran, dan transmisi larutan antar tiga tangki (Tawas, Dukem, Kaporit) secara berurutan dengan presisi. Mekanisme interlock dan proteksi overflow berfungsi dengan baik, serta pengaturan timer pada mixer mampu menjaga homogenitas larutan secara efisien. Implementasi rencana ini diharapkan dapat meminimalkan kesalahan manusia dan meningkatkan standar keselamatan operasional di PPSDM Migas.
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