Racelogic VBOX II User's Guide download pdf (Page 20)

VBOX II Lite User Guide

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CAN Bus data format

Format Motorola

Data Bytes ID** Update

rate

1 2 3 4 5 6 7 8

0x301

50ms (1) Sats in

view

(2) Time since midnight UTC (3) Position – Latitude DDMM.MMMMM

0x302

50ms (4) Position – Longitude DDMMM.MMMMM (5) Velocity. (Knots) (6) Heading. (Degrees)

0x303

50ms (7) Altitude. WGS 84. (Metres) (8) Vertical velocity. (M/S) Unused (9) Status (10) Status

0x304

50ms Unused (11) Longitudinal Accel. (G) (12) Lateral Accel. (G)

0x305

50ms (13) Distance. (Meters)

**Default Identifiers. The identifier values can be changed using the configuration software.

(1) If Satellites in view < 3 then only Identifier 0x301 transmitted and bytes 2 to 8 are set to 0x00.

(2) Time since midnight. This is a count of 10mS intervals since midnight UTC. (5383690 = 53836.90 seconds since midnight or 14 hours, 57

minutes and 16.90 seconds)

(3) Position, Latitude * 100,000 (515924579 = 51 Degrees, 59.24579 Minutes North). Latitude highest bit indicates north/south hemisphere.

0=north, 1=south, Bit 7 in Status is also set.

(4) Position, Longitude * 100,000 (5882246 = 0 Degrees, 58.82246 Minutes West). Longitude highest bit indicates east/west of Greenwich

meridian. 0=west,1=east. Bit 6 in Status is also set.

(5) Velocity, 0.01 knots per bit.

(6) Heading, 0.01° per bit.

(7) Altitude, 0.01 meters per bit, signed.

(8) Vertical Velocity, 0.01 m/s per bit, signed.

(9) Status. 8 bit unsigned char. Bit 0=VBOX Lite, Bit 1=Open or Closed CAN Bus (1=open), 2=VBOX3

(10) Status is an 8 bit unsigned char. Bit 0 is always set, Bit 3=brake test started, Bit 4 = Brake trigger active, Bit 5 = DGPS active

(11) Longitudinal Acceleration, 0.01G per bit, signed.

(11) Lateral Acceleration, 0.01G per bit, signed.

(13) Distance, 0.000078125 meters per bit, unsigned.

The VBOX CAN database is available in Vector Database (DBC File) format on request from Racelogic

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Racelogic VBOX II User's Guide Page 20