Description
🚢 Product Introduction
The AUTO-MASKIN DCU 305 A R2 Engine Control System Controller is a professional marine diesel engine monitoring and control unit developed for auxiliary engines, emergency generators, and mechanical engine applications. As one of the most widely installed controllers in the Marine Pro 300 Series, the DCU 305 A R2 provides complete engine supervision, alarm handling, automatic start/stop control, safety shutdown, event logging, and communication with remote monitoring systems. The controller supports configurable I/O, Modbus RTU communication, optional J1939 CAN interface (depending on version), and expansion modules for enhanced functionality. It remains available as a legacy spare part and is configurable using Auto-Maskin Rudolf R2 software.
📋 Product Specifications (Datasheet)
- 🔹 Product Name: AUTO-MASKIN DCU 305 A R2 Engine Controller
- 🔹 Manufacturer: Auto-Maskin AS
- 🔹 Series: Marine Pro 300
- 🔹 Model: DCU 305 A R2
- 🔹 Product Type: Diesel Engine Control & Monitoring System
- 🔹 Engine Application: Auxiliary Engines and Emergency Generator Sets
- 🔹 Communication: Modbus RTU
- 🔹 Optional Interface: J1939 CAN Bus (CAN version only)
- 🔹 Configuration Software: Rudolf R2 for Windows
- 🔹 Display: Integrated LCD Display with Keypad
- 🔹 Event Log: Built-in Alarm and Event Recording
- 🔹 Expansion Support: RK-66 Interface Module, AK-6 Analog Module, MK-14 Relay Module
- 🔹 Remote Panel Support: RSP 305 Remote Panel
- 🔹 Input Voltage: 24 VDC
- 🔹 Power Consumption: Low-power industrial controller
- 🔹 Dimensions: Manufacturer dependent installation configuration
- 🔹 Weight: Approximately 1.5–2.0 kg (configuration dependent)
- 🔹 Mounting: Panel Mount
- 🔹 Protection: Marine Industrial Design
- 🔹 Country of Origin: Norway
- 🔹 Certifications: Marine Classification Society Approvals (DNV, LR, ABS and others depending on project)
⚙️ Product Instructions
🔹 Install the controller securely in the engine control panel.
🔹 Connect engine sensors, switches, and actuators through the RK-66 terminal module.
🔹 Configure all engine parameters using Rudolf R2 configuration software.
🔹 Connect remote panels or vessel alarm systems through the Modbus RTU interface.
🔹 Verify alarm functions, shutdown logic, and start/stop sequences before commissioning.
🔹 Perform routine inspection of wiring, communication ports, and alarm history.
🔹 Only trained marine service personnel should modify configuration parameters.
⭐ Product Features
⚙️ Complete diesel engine monitoring and control
🚢 Designed for marine auxiliary and emergency generator applications
📟 Integrated LCD operator interface
🔔 Automatic alarm and safety shutdown management
📝 Built-in event and alarm logging
🔌 Modbus RTU communication
🌐 Optional J1939 CAN communication (CAN variant)
🧩 Expandable digital, relay, and analog I/O modules
💻 Windows-based Rudolf R2 configuration software
🛠 Reliable legacy controller with worldwide marine installations
❓ Frequently Asked Questions (Q&A)
Q1. What is the DCU 305 A R2 used for?
✅ It is used to monitor, control, and protect marine diesel auxiliary engines and emergency generator sets.
Q2. Does it support remote monitoring?
✅ Yes. The controller supports Modbus RTU communication and can connect to the RSP 305 Remote Panel and vessel alarm systems.
Q3. Can additional I/O be added?
✅ Yes. Expansion modules including RK-66, AK-6, and MK-14 provide additional analog and digital I/O capability.
Q4. Which software is required?
✅ Configuration is performed using Auto-Maskin Rudolf R2 software for Windows.
Q5. Is the DCU 305 A R2 still in production?
✅ The standard DCU 305 A R2 remains available as a legacy spare part, while CAN versions have been replaced by the DCU 305 R3 series.
Q6. What engines is it designed for?
✅ It is designed primarily for mechanical diesel auxiliary engines, emergency generators, and other marine engine applications.
🔥 Recommended AUTO-MASKIN Models
- 🔹 DCU 305 R3 Engine Controller
- 🔹 DCU 305 R3 LT Engine Controller
- 🔹 DCU 410E Engine Controller
- 🔹 DCU 210 Engine Controller
- 🔹 DCU 210E Engine Controller
- 🔹 DCU 2217 Engine Controller
- 🔹 DCU 2700 Engine Controller
- 🔹 RSP 305 Remote Panel
- 🔹 AK-6 Analog Expansion Unit
- 🔹 MK-14 Relay Expansion Unit

