Logging is recommended only when connected to the device via USB.
Remote logging via 4G is also acceptable, provided a stable connection is available.
Logs received via 2G are not suitable for decoding.
If CAN File Library does not have the required decoding file or there is no particular parameter in the required decoding file, then you will need to record logs from the CAN bus of the vehicle.
To detect if data is available at the selcted connection point, follow the recommendations from the Connection Diagnostics guide.
Detailed guide on how to use the interface for logging is given in the CAN Bus Logging guide.
Saved logs must be sent to Navtelecom Technical Support Team:
If the device has a password, then before contacting us you need to remove it or provide it in the email request accordingly.
For us to effectively analyze the logs provided, we ask to provide as much information as possible about the vehicle and the actions performed during logging procedure.
All parameters recorded in the log must contain corresponding names.
Also it is mandatory to provide a description of the connection point and the exact year of manufacture of the vehicle.
To record a log, it is recommended to use the template Custom log with limited recording time.
When recording a log, you must simultaneously record a video, observing the following requirements:
Discrete parameters are sensors that take on/off values (handbrake, ignition, etc.)
When recording discrete sensors, activate no more than 2 sensors per 60-second log, and each sensor must be activated at least 3 times.
In the comments to the log, you need to indicate which sensors were activated during recording, in order to be able to compare the video with information from the logs.
Numerical parameters are sensors that take arbitrary numerical values (fuel sensors, temperature sensors, etc.)
When writing logs with numerical parameters, it is necessary to record changes to these parameteres.
For example, to calculate the fuel level parameter, you need to refuel the car.
During refueling, it is necessary to perform at least three fuel fills:
| Tank capacity | Approximate volume per fill |
|---|---|
| < 70l | 10l |
| 70l ... 200l | 20l ... 30l |
| > 200l | 50l |
In the comments be sure to indicate the fuel level before and after refueling, as well as the frequency of refueling.