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Key Technical Specifications
| Parameter | Specification |
| Processor Platform | 1.0 GHz dedicated marine-grade industrial processor (H6036 hardware) |
| Firmware / BIOS | BIOS K6036001.008 |
| Power Supply Input | Nominal 24 VDC (18 VDC to 30 VDC operating range) |
| Ethernet Interfaces | Dual redundant LAN (RJ45 ports) for marine network connectivity |
| Serial Communications | Multiple RS422 / RS232 COM ports (D-Sub connectors) |
| Fieldbus Protocols | Integrated 4-Channel CAN bus interfaces (CAN 1 – CAN 4) |
| Display & USB | DVI Video Out |
| Operating Temperature | -20°C to +60°C (marine engine room cabinet rated) |
| Mechanical Housing | Heavy-duty corrosion-resistant metal chassis with IP20 vibration-proof mounting |
Product Introduction & Application Context
The Rolls-Royce Marine H1111.0203 is a high-performance, marine-grade main automation controller designed to manage complex vessel operations under severe sea conditions. As part of the Rolls-Royce Common Control Platform and Unified Bridge architecture, the unit runs real-time control algorithms for main propulsion engines, controllable pitch propellers (CPP), thrusters, and integrated power management systems (PMS).
Unlike generic industrial PLCs, the H1111.0203 is specifically hardened against electrical transients, salt spray, and extreme mechanical vibration encountered in shipboard environments. When replacing a failed controller in an active vessel automation architecture, retaining exact matching hardware identifiers (RR Part 75670 and Rev 2.2) is critical to ensure compatibility with installed software firmware images and bridge console nodes.
Installation & Replacement Guide
1.System Power Isolation & Safety:Perform LOTO on cabinet power feeds and tag out control channels.
Disconnect main 24 VDC feed supply to the automation enclosure. Follow marine safety isolation procedures and verify zero voltage across power terminals before handling internal wiring.
2.Interface Cable Disconnection:Label fieldbus connectors, serial leads, and Ethernet cables.
Carefully map and label all D-Sub connectors (CAN bus, RS422/RS232 serial), RJ45 network cables (LAN A/B), DVI video lines, and discrete output blocks before disconnecting from the front panel.
3.Physical Controller Swap:Unbolt unit from cabinet DIN mounting/backplate.
Remove cabinet retention screws and detach the legacy H1111.0203 unit. Mount the replacement controller into position, ensuring firm metal-to-metal grounding contact to preserve EMI shielding.
4.Re-wiring & Software Re-commissioning:Reconnect interfaces, restore power, and flash project configuration.
Reconnect all field bus and serial cables. Reapply 24 VDC power. Connect diagnostic laptop via USB/Ethernet to load vessel-specific application software, node parameters, and I/O map settings onto the controller.
H1111.0203
H1111.0203
System Integration & Firmware Considerations
- Vessel Application Software: The H1111.0203 hardware requires project-specific application software flashed to match the target vessel’s machinery configuration. Hardware swapping alone will not operate vessel systems without firmware configuration.
- Hardware Match Verification: Always verify that replacement spares match the target unit’s Part Number 75670, H6036 hardware base, and PIC Revision 2.2 code before deployment on critical ocean vessels.
Frequently Asked Questions (FAQ)
Q: Is the Rolls-Royce H1111.0203 a standard PLC or an industrial PC? A: It functions as an embedded marine automation main controller—combining industrial PC computing power (1.0 GHz processor) with dedicated fieldbus interfaces (CAN, RS422, Ethernet) tailored for shipboard control systems.
Q: Can I interchange an H1111.0203 with an .0104 or .0102? A: No. While physical connectors may look similar across the series, processor clock speeds, onboard BIOS, and PIC revision codes differ, which can cause communication failures on the vessel’s internal bus network.
Q: What power supply is required for this marine unit? A: The controller operates on standard shipboard auxiliary 24 VDC nominal power supply (tolerating 18 VDC to 30 VDC fluctuations).
