Rolls‑Royce H1111

Technical Specifications

Redundant power supply 18‑32 V DC; Typical peak power consumption 28 W; Triple‑core PowerPC e5500 lock‑step processor @1.5 GHz; 2 GB ECC DDR3 memory; 512 MB NOR flash memory; Deterministic control cycle 250 µs; Interfaces: Gigabit Ethernet, CAN FD, FOUNDATION Fieldbus H1, RTD/TC analog input channels; Operating temperature ‑40 °C ~ +105 °C; SIL 3 safety certification; DNV‑GL, ABS, Lloyd’s Register marine approvals; Typical physical dimension 300 mm × 250 mm × 100 mm; Weight 3.8 kg.

Functional Features

Triple‑core lock‑step fault‑tolerant computation; Redundant power‑supply input; Real‑time deterministic control loop; Multiple marine‑standard communication bus interfaces; Analog signal acquisition for temperature sensors; Built‑in watchdog and cross‑core fault‑check mechanism; On‑board system diagnostic function; Support propulsion‑system closed‑loop control; Status data logging function.

Application Scenarios

Vessel dynamic‑positioning DP systems, azimuth thruster control, ship propulsion automation, offshore supply vessel control systems, cruise‑ship integrated bridge control, marine thruster and steering‑gear control systems.

Performance Parameters

Deterministic real‑time performance for marine safety‑critical loops; High immunity to salt‑mist corrosion, vibration and wide‑range temperature fluctuation; Support hot‑standby redundant system configuration; Compliance with IEC 61508 SIL 3 functional‑safety standard; Resist marine‑environment electromagnetic interference.

Material Composition

Sealed corrosion‑resistant aluminum alloy enclosure; Marine‑grade conformal‑coated circuit boards; Gold‑plated industrial‑marine connectors; High‑grade industrial‑grade memory chips; Vibration‑reinforced internal component fixation; Anti‑corrosion surface‑treatment on housing.

Structural Characteristics

Compact metallic sealed enclosure; Multi‑port external‑connector front panel; Internal plug‑in circuit‑board stack structure; Rear mounting flange for cabinet‑rack installation; Internal isolated power‑supply unit; Shielded internal signal‑trace layout for EMC performance.

Working Principle

Triple lock‑step processors execute identical control logic simultaneously and cross‑check computation results. Process sensor and bridge‑command signals, compute propulsion‑control output values, transmit commands to thruster‑actuator subsystems via fieldbus interfaces. Watchdog and cross‑core comparison trigger safe‑state response upon internal fault detection to guarantee marine‑system safety operation.

Installation Requirements

Mount inside marine‑equipment cabinet via rear‑mount flange; Maintain ventilation clearance around enclosure; Apply redundant 24 V DC power‑supply wiring; Use specified marine‑qualified shielded cables for all communication interfaces; Firmly fasten connectors against vessel vibration; Enclosure protective earthing must connect to ship protective earth; Avoid installation location with direct salt‑water splash exposure.

Usage Notes

Only deploy within certified marine‑automation system architecture; Do not open sealed housing; Execute power‑off before connector disconnection; Follow classification‑society maintenance procedures; Periodically inspect connector tightness affected by vessel vibration; Operate strictly within specified voltage and temperature ranges.