Create log file for Yacht Devices engine data gateway – troubleshooting guide

How to record NMEA2000 data and export log files for quick support and troubleshooting.

In most cases, the installation of an engine data gateway works without problems, but sometimes errors occur that can be difficult to troubleshoot. In such cases, a log file is invaluable for identifying the cause.

Yacht Devices has a fast and competent support organization, but to provide the best help, they often need a log file from the product. Here we show you step-by-step how to create such a log file.

Why is a log file needed?

• Troubleshooting communication between the engine and the NMEA2000 network
• Diagnosis of performance issues
• Basis for support with Yacht Devices

Step-by-step: Record a log file

1. Turn off the engine's ignition.
2. Create a file named YDEG.TXT on the MicroSD card and add the line:
   ENGINE_LOG = ON
3. Insert the MicroSD card into the device and turn on the engine's ignition.
4. The device starts recording data and creates a file in the root folder named YDEGxxx.CAN (xxx = file number).
5. Each time the engine network is started, a new file is created.
6. When the ignition is turned off, wait until the LED shows a red signal before removing the card.

Note: The configuration is not saved in the device's memory on the YDEG-04. Recording stops when the card is removed or the network is shut down.

View and convert log files

Use the free program CAN Log Viewer to view, convert, or export .CAN files. The program works on Windows, Mac OS X, and Linux:
http://www.yachtd.com/products/can_view.html

Protocol information

The file format is open and described in the CAN Log Viewer documentation. Protocol knowledge is required for analysis:

• BRP CAN – proprietary protocol
• Volvo Penta EVC – proprietary extension of J1939
• J1939 – documentation is available from SAE (www.sae.org)