Description

Rolls-Royce H1111.0203c Product Description

Technical Specifications

• Product Model: H1111.0203c
• Brand: Rolls-Royce
• Warranty: One Year
• Input Voltage: Redundant 24VDC ±10% marine-grade DC power supply
• Operating Temperature: -20°C to +55°C
• Storage Temperature: -40°C to +85°C
• Response Time: ≤2ms deterministic closed-loop control cycle for DP and propulsion logic
• Protection Class: IP30 for climate-controlled marine electrical cabinet installation
• Accuracy Class: 0.02% full-scale precision for vessel position and heading calculation
• Output Frequency: 10/100Mbps auto-negotiation Ethernet bus communication frequency
• Rated Current Range: Maximum 1.2A total module power consumption
• Communication Interface: Dual redundant RJ45 Ethernet ports, galvanically isolated CAN bus, RS485 serial port, rack backplane edge connector
• Supported Protocols: Rolls-Royce proprietary CCS internal bus, CANopen, Modbus RTU, TCP/IP
• Overload Capacity: 130% transient voltage surge withstand for 20 seconds
• Dimensions: 250mm (H) × 200mm (W) × 100mm (D), net weight 2.07kg
• 

Product Overview

The H1111.0203c is a revised suffix variant of the Rolls-Royce H1111.0203 high-performance main controller module, the core computing unit for the brand’s Marine Common Control System (CCS) and Dynamic Positioning (DP) vessel automation framework. Equipped with a 1.0GHz industrial ruggedized processor and large-capacity flash non-volatile memory, this module executes core algorithmic tasks including vessel real-time position locking, azimuth thruster load distribution, main propulsion engine governing, power management load shedding, and safety interlock protection for offshore vessels, drilling rigs and workboats. It addresses severe operational challenges unique to marine offshore environments, including vessel drift caused by wind, wave and current disturbances, single controller failure triggering DP system dropout, unstable data transmission under high electromagnetic interference from shipboard high-power equipment, and complicated centralized fault recording for maritime regulatory inspections. The dual-redundant power input design prevents module shutdown due to single power circuit breakdown, while multi-layer PCB shielding suppresses vibration-induced signal distortion and electrical noise from generators, frequency converters and large propulsion motors.