I am thrilled to announce the completion of my internship at PT Granitor Systems APAC . During this period, I had the opportunity of collaborating with my esteemed colleagues, Salwa Dewi Hasanah Caniko and Een to design and implement a comprehensive solution for a demo project titled "Integration of an HVAC System for an Electrical Room." This project involved the automation and integration of peripherals within the HVAC system, with a particular focus on the chiller system, to regulate the temperature within an electrical room, ensuring a stable environment and optimal performance of the electrical equipment housed within.
𝗞𝗲𝘆 𝗛𝗶𝗴𝗵𝗹𝗶𝗴𝗵𝘁𝘀 𝗼𝗳 𝘁𝗵𝗲 𝗣𝗿𝗼𝗷𝗲𝗰𝘁
- System Architecture
We meticulously designed the network architecture for the system integration, identifying the appropriate network types and protocols to be employed.
- Bill of Materials (BOM)
We compiled a detailed Bill of Materials, specifying all necessary components required to implement the HVAC system, including main devices, controllers, I/O modules, communication processors, and other essential equipment.
- Programming with Simatic Manager
The PLC S7-400 was programmed using Simatic Manager, enabling us to perform internal testing via PLCsim to ensure the robustness of the program.
- Modbus TCP Protocol
Modbus TCP Protocol was utilized for specific network segments, chosen for its efficiency in compact data transfer and secure communication.
- PID Control Implementation in Valve Adjustment
We implemented PID control to regulate the valve adjustments for cold air supply within the Air Handling Unit (AHU) as part of the chiller system.
- Ignition for Web-Based SCADA
To facilitate easy monitoring and operation of the HVAC system, we developed a responsive, web-based SCADA system using Ignition software.
- PostgreSQL as Database
PostgreSQL was integrated with the SCADA system to store critical data from sensor logging, including timestamps, to ensure data accuracy and availability.
- Communication Skills
Effective communication was key in conveying the project's technical aspects to stakeholders, ensuring that the solution was well-understood and accepted.
In addition to the main project, we also contributed to various document management tasks, including the preparation of the Project Quality Plan, Business Requirement Specification, and Business Solution Design.
I extend my sincere gratitude to our mentors, Achmadun Habibullah and Muhammad Reza Firdaus, for their invaluable guidance and trust in us. I also extend my deepest gratitude to all my colleagues who have accompanied me throughout the internship program. This internship has been a significant milestone in my journey towards a career in automation, enriching my knowledge and skills in the field.
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