Description
Rolls-Royce Marine H1111.0104
Product Introduction
A legacy marine controller is usually difficult to replace for one reason: the part number identifies the hardware, but the vessel’s operating configuration determines how that hardware actually functions. The Rolls-Royce Marine H1111.0104 is identified in current industrial records as a marine controller, with Part No. 75669. It belongs to the H1111 family used within Rolls-Royce marine automation equipment.
For maintenance procurement, the Rolls-Royce Marine H1111.0104 should be handled as an exact-match legacy controller rather than a generic PLC CPU. Available records do not establish a sufficiently reliable universal specification for its power supply, I/O count, communications, or operating temperature. Those details can vary by hardware revision and vessel configuration, so the original controller label, system drawings, firmware information, and installed interface arrangement should be checked before approving a replacement.
Key Technical Specifications
| Parameter | Specification |
|---|---|
| Product Model | H1111.0104 |
| Manufacturer | Rolls-Royce Marine |
| Part Number | 75669 |
| Product Type | Marine Controller |
| Controller Family | H1111 |
| Primary Function | Marine automation / control |
| System Application | Vessel automation and ship control |
| Hardware Revision | Verify from physical nameplate |
| Firmware / Software | Verify against vessel configuration |
| Communication Interfaces | Configuration dependent; verify actual unit |
| I/O Configuration | Configuration dependent; verify actual unit |
| Supply Voltage | Verify from original documentation/nameplate |
| Operating Temperature | Verify from system documentation |
| Installation | Vessel-specific control cabinet/system |
| Condition | Verify actual physical and functional condition |
Important specification note: Some secondary listings attempt to associate .0104 with specifications belonging to neighboring models. For example, one source discusses .0102 and .0204 specifications when describing .0104, which is not sufficient evidence for publishing those values against this exact part number.
Application Scenarios & Field Considerations
Legacy Ship Automation
The .0104 is relevant to vessels retaining Rolls-Royce marine automation equipment. In these installations, the controller may form part of a larger control architecture containing dedicated I/O, communication, operator-interface, and subsystem controllers.

H1111.0104
Propulsion and Machinery Control
Marine controller records place the family within shipboard automation applications. The exact function of an individual .0104 depends on the vessel project and its application software, so it is better to describe the component as a marine controller than to assign a specific propulsion or engine-control function without documentation.
Legacy Controller Replacement
When an .0104 fails, the replacement should be compared directly with the removed controller. Record the complete part number, hardware revision, serial number, connector arrangement, installed memory or storage hardware, and software/firmware identifiers.
Marine Automation Migration
During a vessel modernization project, retaining the original controller as a reference can be valuable. Configuration files, network addresses, I/O assignments, and application data may not be recoverable simply from a replacement bare controller.
Related Products
- — related -series marine controller; different model and configuration.
- — related -series marine controller; current secondary records identify it separately from .0104.
- — another Rolls-Royce Marine -series controller used in legacy marine automation.
- — related -series controller with a different documented hardware configuration.
- H1127-0101 — Rolls-Royce Marine H6045 controller; different controller family/configuration.
- CCN 01 CANMAN Controller — related Rolls-Royce marine network/control equipment, but not a confirmed substitute.
- SLIO 02 CANMAN — related marine control/network hardware serving a different system function.
These products can help identify the surrounding Rolls-Royce automation architecture, but none should be treated as a direct replacement without engineering verification.
Engineer’s Guide — Field Pitfalls to Avoid
1. Do Not Infer Specifications From .0102 or .0204
This is the biggest documentation trap. A secondary source describing .0104 also references .0102 and .0204 specifications. Those figures should not be transferred to .0104 simply because the model numbers are similar.
2. Confirm Part Number 75669
Current industrial records consistently associate .0104 with Part No. 75669. This is an important purchasing cross-check.
3. Check the Complete Hardware Label
Before ordering, photograph the full label and record revision, serial number, hardware identifiers, connectors, and any software or firmware markings. For marine equipment, a shortened model number is often insufficient.
4. Do Not Assume Communication Interfaces
Claims for Ethernet, CAN, Profibus, serial ports, and other interfaces appear in listings for related controllers. They should not automatically be attributed to every .0104.
5. Verify Configuration Before Commissioning
A controller that powers up successfully is not necessarily a functional replacement. Application software, network parameters, node identity, I/O mapping, and vessel-specific configuration can all affect commissioning.
6. Separate Hardware Condition From Model Identity
A seller can correctly identify an .0104 while the particular physical unit may be used, removed from service, refurbished, or otherwise untested. One current listing specifically describes .0104 as used and removed from a working environment.
7. Do Not Approve a Substitute Based Only on Similar Applications
The fact that .0102, .0103, .0203, and .0204 are all marine controllers does not establish electrical, mechanical, firmware, or application compatibility. Treat them as separate procurement items until the vessel documentation confirms interchangeability.
FAQ
What is Rolls-Royce .0104?
is identified as a Rolls-Royce Marine controller, with Part No. 75669. Current industrial records classify it as a marine controller used in ship automation equipment.
Is .0104 a PLC CPU?
It is better classified as a marine automation controller rather than assuming it is a conventional modular PLC CPU. Its exact system role depends on the Rolls-Royce vessel architecture and installed application.
What is the Rolls-Royce part number for .0104?
The matching records identify 75669 as the part number associated with .0104.
Is .0104 the same as .0103?
No. They are separate model designations. Secondary records identify .0103 separately as another -series marine controller.
Can .0104 replace .0204?
Do not assume direct interchangeability. The two have different model numbers, and available records indicate different hardware configurations. Compatibility should be confirmed from the vessel’s approved documentation and controller revision information.
What power supply does .0104 use?
A reliable exact-model primary specification was not found in the available public records. For procurement and engineering, verify the original controller documentation and nameplate rather than applying a voltage specification from another model.
What should be checked before buying .0104?
Confirm , Part No. 75669, hardware revision, serial number, connector arrangement, firmware/software identifiers, configuration or memory hardware, and actual physical condition. For a vessel-critical application, functional test evidence should also be requested.
