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Yacht Devices YDOG-01R Outboard Engine Gateway with SeaTalk NG Connector for Petrol Engines
The Yacht Devices YDOG-01R is an Outboard Gateway designed for petrol engines that do not have a digital engine interface. It provides compatible NMEA 2000 and SeaTalk NG equipment with engine RPM, engine hours and alternator voltage measured through the NMEA 2000 interface.
The gateway can also use data from compatible NMEA 2000 temperature and pressure sensors and retransmit this information as engine parameters, including coolant temperature, coolant pressure, engine oil temperature, engine oil pressure, boost pressure and fuel pressure.
Main Features
- Designed for petrol engines without digital interfaces
- Raymarine SeaTalk NG-compatible network connector
- Engine RPM measurement from ignition pulses
- Engine hours calculation
- Alternator voltage measurement through the NMEA 2000 interface
- Supports external NMEA 2000 temperature and pressure sensors
- Programmable engine warnings
- Battery charging indicator support
- Configurable engine number from 0 to 3
- Configurable RPM divider from 0.5 to 8
- Four pulse-counting algorithms
- Hidden configuration button
- Firmware update support through CAN Log Viewer
Electrical and Measurement Specifications
Parameter Specification Supply voltage 9–16 V from NMEA 2000 network Current consumption 30 mA Load Equivalency Number 1 LEN Pulse counting range 200–70,000 PPM RPM counting accuracy ±0.5% Voltage measurement accuracy ±0.05 V Engine hours resolution 1 second
Physical Specifications
Parameter Specification Model YDOG-01R Network connector Raymarine SeaTalk NG-compatible Device case length without connector 40 mm Sensing wire length 2000 mm Sensing wire temperature range -50 to +180°C Device operating temperature range -20 to +80°C Weight 25 g
Engine RPM Detection
The YDOG-01R detects ignition impulses without making an electrical connection to the engine ignition system. The sensing wire works as an antenna that detects pulses sent to the spark plug.
For normal installation, the sensing wire should be wrapped 3–5 times around the spark plug wire and secured with suitable tape. Increasing the number of turns increases signal strength but can also increase electrical noise.
- No electrical connection to the spark plug wire is required
- Typical installation: 3–5 turns around the spark plug wire
- Sensing wire can be shortened if required
- Sensing wire can be extended, although additional length can increase noise pickup
RPM Divider Configuration
The number of ignition impulses per engine revolution depends on the engine and ignition system. The gateway therefore provides an adjustable RPM divider from 0.5 to 8.
Engine / Ignition Type Typical RPM Divider Most modern 2-stroke twin-cylinder outboard motors 0.5 Classic 2-stroke engines 1 4-stroke engines with CDI 1 Classic 4-stroke engines with ignition distributor 2
The factory RPM divider setting is 1.
Pulse Counting Algorithms
The gateway includes four signal-processing algorithms for different ignition pulse rates and noise conditions.
- Algorithm 1: factory setting, optimized for up to 15,000 pulses per minute with stronger high-frequency noise filtering
- Algorithm 2: supports up to 70,000 pulses per minute and is recommended for RPM divider settings of 3 or higher
- Algorithms 3 and 4: experimental algorithms
External NMEA 2000 Sensors
The YDOG-01R can receive temperature and pressure data from external NMEA 2000 sensors and use this information as engine data. The same sensor data can also be used to generate engine alerts.
- Coolant temperature
- Coolant pressure
- Engine oil temperature
- Engine oil pressure
- Boost pressure
- Fuel pressure
Programmable Warnings and Indicators
The gateway can be configured to generate engine warnings and charging indications on compatible NMEA 2000 displays.
Function Available Setting Overspeed warning 50–12,700 RPM or OFF High temperature warning 90–344°C or OFF Low voltage warning 8.0–33.4 V or OFF Battery charging indicator 8.0–33.4 V or OFF
The factory low-voltage warning setting is 11.5 V. The factory charging indicator threshold is 13.6 V.
Hidden Button Configuration
Basic installation settings can be changed using the hidden button on the device without a PC.
- Engine number: 0–3
- RPM divider: 0.5 / 1 / 2 / 3 / 4 / 5 / 6 / 7 / 8
- Pulse-counting algorithm: 1–4
- Factory settings reset
Engine number 0 is the factory setting and is used for a single engine or port engine. Engine number 1 is used for the starboard engine in a twin-engine installation.
NMEA 2000 Data
PGN Function 127488 Engine Parameters, Rapid Update 127489 Engine Parameters, Dynamic 130312 Temperature 130314 Actual Pressure 130316 Temperature, Extended Range
Engine Parameters, Rapid Update is transmitted at a factory interval of 100 ms, while Engine Parameters, Dynamic is transmitted at a factory interval of 500 ms.
Installation
The YDOG-01R is powered directly from the NMEA 2000 network and can be connected directly to the SeaTalk NG / NMEA 2000 backbone without a drop cable. The device should be installed in a dry location protected from water, rain and spray.
If the outboard engine is large enough, the gateway can be installed inside the engine. It must be securely fastened, ventilated, isolated from hot surfaces and protected from possible water, oil and petrol spray.
Package Contents
- YDOG-01R Outboard Gateway – 1 pc.
- Paperclip for hidden-button configuration and reset – 1 pc.
- User Manual – 1 pc.
NMEA 2000 drop cable is not supplied. The device can be connected directly to the network backbone without a drop cable.
Product Identification
Parameter Specification Brand Yacht Devices MPN YDOG-01R EAN 4779045210724 -
