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Kongsberg RCU502 330924 – Remote Controller Unit
Product Overview
The Kongsberg RCU502 330924 is a high-performance Remote Controller Unit designed for real-time process control in marine and offshore automation systems. It uses an embedded PowerPC MPC8245 processor running at 400 MHz, with 64 MB RAM and 32 MB application flash memory. The controller provides dual process-network Ethernet, dual field-network Ethernet, redundant RedNet communication, dual RBUS interfaces, CAN, PROFIBUS DP, and multiple isolated serial channels for third-party equipment. Kongsberg documentation also specifies onboard digital I/O, watchdog supervision, built-in diagnostics, and support for redundant controller architectures. The unit is used in both conventional and safety-related control applications, subject to the applicable system architecture and K-Safe engineering requirements.
Technical Specifications — RCU502 330924
| Parameter | Value |
|---|---|
| Product Model | RCU502 |
| Part Number | 330924 |
| Manufacturer | Kongsberg Maritime |
| Product Type | Remote Controller Unit |
| Processor | PowerPC MPC8245, 400 MHz |
| Memory | 64 MB DRAM, 32 MB application Flash |
| Power Supply | +24 VDC nominal, +18 to +32 VDC |
| Power Consumption | Maximum 20 W |
| Communication / Protocol | Ethernet, RS232/RS422/RS485, CAN/DeviceNet, PROFIBUS DP, RBUS |
| Serial Interfaces | 24 isolated serial lines |
| Digital Inputs | 4 opto-isolated inputs |
| Digital Outputs | 4 opto-isolated outputs |
| Mounting | DIN rail T35–15/7.5 |
| Dimensions (HxWxD) | 355 × 158 × 87 mm |
| Weight | 1.34 kg |
| Operating Temperature | -15 to +70°C |
| Typical Interfaces | RJ45 Ethernet, PROFIBUS D-sub, CAN, RBUS, screw terminals |
| Compliance | IEC 60945, IACS E10, IEC 61508, RoHS |
The published hardware specification confirms the electrical, mechanical, environmental, and interface characteristics listed above.
Kongsberg RCU502 330924
Key Features and Benefits — RCU502 330924
- Designed for real-time process control in marine and offshore installations.
- Dual Ethernet networks support process and field communication.
- RedNet interfaces allow redundant controller configurations.
- Two PROFIBUS DP and two CAN interfaces support distributed automation equipment.
- Twenty-four isolated serial channels support third-party devices through the appropriate interface hardware.
- Built-in watchdog, voltage, temperature, fan, and self-diagnostic monitoring help detect controller faults.
- Prepared for redundant and safety-related architectures when used according to the relevant Kongsberg engineering documentation.
Related Models
RCU501: Earlier-generation Kongsberg Remote Controller Unit. The manufacturer documentation states that the newer controller is functionally backward compatible with the previous architecture, although it is not mechanically plug-compatible with every earlier unit.
RCU502i: Related Kongsberg controller listed separately in Kongsberg type-approval documentation with its own part number and hardware description.
RIO420: Kongsberg remote I/O family designed to communicate with the controller through the RBUS interface.
RSER200-4: Serial interface module used with the controller’s Link Channel connections for third-party serial communications.
Installation and Maintenance — RCU502 330924
Installation should follow the applicable Kongsberg hardware and system documentation. Confirm the supply voltage, DIN-rail mounting arrangement, network addressing, application software, and installed interface configuration before energizing the replacement.
Particular attention should be paid to the MAC-address switches and MODE switch. Kongsberg specifies MODE position 0 for normal operation, while other positions are intended for specialized servicing or debugging. Personally, I would photograph the switch settings and cable connections before removing a field unit; that small step can save considerable commissioning time later.
Product Warranty — RCU502 330924
Warranty terms depend on the supplier and the physical condition of the unit. For new, surplus, refurbished, or repaired stock, confirm the warranty period, serial-number traceability, hardware revision, and functional test status before purchase. Kongsberg documentation identifies 330924 as the RCU502 part number and records the module within its approved marine and safety-control architecture.
The Kongsberg RCU502 330924 is a specialized marine automation controller, and exact hardware revision and system compatibility should be checked before replacement in an active vessel or offshore control installation.
