Greenbulb Energy  is proud to announce the successful completion of an 8-unit Rubber Tyred Gantry (RTG) crane control system upgrade at Penang Port Sdn. Bhd. (PPSB).

The project focused on modernising critical crane control systems to improve operational reliability, safety, and long-term maintainability. All works were completed ahead of the planned schedule, with minimal impact to port operations.

Each RTG was upgraded through a carefully phased execution plan, followed by comprehensive testing and operational handover. The upgraded cranes are now fully operational and supported under a structured warranty and technical support programme.

Project Scope and Key Works

The scope of work included:

• Replacement of legacy PLC systems with Siemens S7-1500 PLC
• Installation of Siemens SINAMICS S120 drive systems for hoist, gantry, trolley, and line module applications
• Upgrade of HMI systems for improved operability and diagnostics
• Integration of PROFIBUS and PROFINET communication, including fiber optic OLM
• Drive parameterization, PLC program loading, and system fine-tuning
• Comprehensive testing, commissioning, endurance testing, and operational handover

This project reinforces Greenbulb’s commitment to delivering reliable, high-quality industrial automation solutions for critical port infrastructure.