--- title: "Petro: Repair PLC ABB | Citia" description: "Perbaikan, pemulihan dan pemrograman ulang sistem kontrol ABB AC 800F dan Freelance yang memantau switchgear 6 kV dan 20 kV di unit batu bara PT Petrokimia…" url: https://citia-engineering.com/id/projects/petrokimia-gresik-abb-plc-repair language: id updated: 2026-08-24 type: project site: Citia Engineering Indonesia --- # Petro: Repair PLC ABB Perbaikan, pemulihan dan pemrograman ulang sistem kontrol ABB AC 800F dan Freelance yang memantau switchgear 6 kV dan 20 kV di unit batu bara PT Petrokimia Gresik. | Info | Isi | | --- | --- | | Tahun | 2020 | | Status | Selesai | | Diperbarui | 2026-08-24 | ## Tentang pekerjaan ini ### Latar belakang Bagian listrik unit batu bara memakai sistem ABB untuk memantau switchgear 6 kV dan 20 kV. Panel PLC terpasang sekitar 2010 dan tidak berfungsi sejak 2018. Baterai CPU rusak, engineering workstation (EWS) tidak lagi ada di control room dan operator workstation (OWS) mati. ### Sistem yang ada Dua controller ABB AC 800F redundant dengan ABB Freelance, modul I/O, modul komunikasi Ethernet, serial dan Profibus DP, mimic panel listrik, power meter Schneider PowerLogic ION6200, switchgear ABB UniGear dan relay proteksi ABB. ### Lingkup pekerjaan - **Troubleshooting controller.** Setiap CPU diuji sendiri, bersama konfigurasi redundant, power supply, modul komunikasi dan koneksi lapangan. Kedua CPU masih berfungsi. - **Kegagalan modul komunikasi.** Penelusuran menemukan hubung singkat pada koneksi terminal dan dua modul komunikasi yang rusak. - **Pemulihan EWS.** Software engineering dipasang ulang. Backup yang ada tidak dapat diunduh karena firmware controller sudah dinaikkan, sehingga ABB Freelance versi lebih baru dipasang pada EWS. Hard disk EWS lama rusak, sehingga program terakhir tidak tersedia lagi. - **Pemrograman ulang.** Review backup yang ada, pemrograman ulang peralatan yang belum diperbarui, tag yang tidak muncul, serta pemeriksaan logika proses dan pemetaan tampilan. - **Pemulihan workstation.** Fungsi EWS dan OWS digabung pada satu workstation karena perangkat lama bermasalah. - **Komunikasi power meter.** Uji query dan response Modbus pada setiap Schneider ION6200, pemeriksaan alamat komunikasi, dan identifikasi meter yang mati atau tidak berkomunikasi. - **Bus I dan II 6 kV.** Status breaker, power meter digital, status komunikasi dan pengukuran beban, dicocokkan antara peralatan lapangan dan HMI. Sebagian besar pengukuran kembali tampil pada halaman operasi selama power meter lapangan masih berfungsi. - **Monitoring feeder.** Sistem kembali menampilkan daya generator, Plant II, Plant III, transformator outgoing, feeder 6 kV, pengukuran bus dan status breaker. - **Antarmuka switchgear dan proteksi.** Berdasarkan foto lapangan, pemeriksaan switchgear ABB UniGear, relay proteksi ABB REF610, panel feeder tegangan menengah, mimic panel, terminasi lapangan dan antarmuka komunikasi. ## Kontak - Perusahaan: PT Citia Engineering Indonesia - Email: services@citiaengineering.com - Telepon: +62 21 278 20286 - Kantor: Jl. Kaimun Jaya No. 1, Cilandak Barat, Jakarta Selatan, DKI Jakarta 12430, Indonesia [Hubungi Citia](https://citia-engineering.com/id/contact.md) ## Data terstruktur (JSON-LD) ```json { "@context": "https://schema.org", "@graph": [ { "@type": "Organization", "@id": "https://citia-engineering.com/#organization", "name": "Citia Engineering Indonesia", "legalName": "PT Citia Engineering Indonesia", "alternateName": "Citia", "url": "https://citia-engineering.com", "logo": { "@type": "ImageObject", "url": "https://citia-engineering.com/media/citia-logo.png", "width": 950, "height": 328 }, "description": "Citia adalah perusahaan engineering dan integrasi sistem di Jakarta. Kami menghubungkan perangkat lapangan, PLC dan SCADA, software terminal dan sistem enterprise, lalu memasang, menguji dan merawatnya.", "email": "services@citiaengineering.com", "telephone": "+62 21 278 20286", "address": { "@type": "PostalAddress", "streetAddress": "Jl. 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