--- title: "Supply of Allen-Bradley PLC digital output modules | Citia" description: "The work was done at the Cikampek fuel terminal. It covers troubleshooting and replacement of the faulty Digital Output (DO) on the Allen-Bradley PLC…" url: https://citia-engineering.com/en/projects/supply-of-allen-bradley-plc-digital-output-modules-and-moxa-converter language: en updated: 2026-09-21 type: project site: Citia Engineering Indonesia --- # Supply of Allen-Bradley PLC digital output modules and Moxa converter The work was done at the Cikampek fuel terminal. It covers troubleshooting and replacement of the faulty Digital Output (DO) on the Allen-Bradley PLC, including checks of I/O function and related wiring. | Field | Value | | --- | --- | | Year | 2026 | | Location | Karawang, Jawa Barat | | Status | Ongoing | | Work types | PLC | | Updated | 2026-09-21 | ![Allen-Bradley PLC rack and cabling in a cabinet at Project site](https://citia-engineering.com/media/field/detail-allen-bradley-plc-rack-01-1600.webp) ## About this work ### Overview The **PLC I/O and Moxa NPort 5160 replacement and troubleshooting** work was done at the **Cikampek fuel terminal** to restore the reliability of the control system and the meter reading communication in the existing system. ### Challenges Problems were found on the **Allen-Bradley PLC Digital Output (DO)**, and on the **Moxa NPort 5160** used as the communication gateway for meter reading. This called for troubleshooting, device replacement, and integration testing with the existing system. ### Solutions The team troubleshot the PLC Digital Output and checked the wiring and I/O function, then **replaced the faulty DO component**. Next, they **replaced the Moxa NPort 5160**, configured the network and serial communication parameters, re-integrated it with the meter reading system, and did testing and commissioning. ### Lessons learned Troubleshooting needs a full check of I/O condition, wiring, communication configuration and network. This finds the source of the fault correctly, and the replacement does not disturb the existing system. ## Contact - Company: PT Citia Engineering Indonesia - Email: services@citiaengineering.com - Telephone: +62 21 278 20286 - Office: Jl. Kaimun Jaya No. 1, Cilandak Barat, Jakarta Selatan, DKI Jakarta 12430, Indonesia [Contact Citia](https://citia-engineering.com/en/contact.md) ## Structured data (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 is an engineering and system integration company in Jakarta. We connect field devices, PLC and SCADA, terminal software and enterprise systems, then install, test and maintain them.", "email": "services@citiaengineering.com", "telephone": "+62 21 278 20286", "address": { "@type": "PostalAddress", "streetAddress": "Jl. 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