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Please see the table below:

Message Type

CAN ID

Data Bytes

0

1

2

3

4

5

6

7

Request

Start
Slip
offset
calculation

0x7FE

46

49

4C

45

4D

41

4E

40

Request

Cancel
Slip
offset
calculation

0x7FE

46

49

4C

45

4D

41

4E

41

Response

Increase

speed
to >25
km/h

0x7FB

05

02

00

00

00

00

00

00

Response

Drive
Straight

0x7FB

05

03

00

00

00

00

00

00

Response

Offset
done –
value
shown
in Data
bytes
2-5

0x7FB

05

01

3F

9D

70

A4

00

00

Response

Offset
failed

0x7FB

05

00

00

00

00

00

00

00

The Response message to indicate completion also contains the Offset value as a 32 bit IEEE float on Data bytes 2-5.

In the example above Data bytes 2 - 5 = 3F 9D 70 A4 which equals a decimal value of 1.23

o

https://racelogic.support//01VBOX_data_loggers/VBOX_II_Range/VBOX_II_User_Guide/08_-

_VBOX_20SL_Slip%2F%2FRoll_Angle_Offsets

3

Summary of Contents for VB20SL3

Page 1: ...alculating and setting the offset With the antennas placed suitably and the antenna separation set correctly in the unit enter the Setup Antenna configuration menu and select Slip offset Calc Offset The unit will give instructions on its display screen to allow it to determine the offset First the unit will instruct you to drive at a speed greater than 25 km h Once this is achieved the unit will t...

Page 2: ...menu then select the Setup Antenna Menu and then select either the Pitch or Roll antenna setup menu From within either the Pitch or Roll antenna setup menu select either Pitch or Roll offset menu when the screen shows CALC OFFSET press the to calculate a PITCH or ROLL offset If required the Pitch or Roll angle offset can be re calculated at any time by repeating this procedure Selecting the Clear ...

Page 3: ...raight 0x7FB 05 03 00 00 00 00 00 00 Response Offset done value shown in Data bytes 2 5 0x7FB 05 01 3F 9D 70 A4 00 00 Response Offset failed 0x7FB 05 00 00 00 00 00 00 00 The Response message to indicate completion also contains the Offset value as a 32 bit IEEE float on Data bytes 2 5 In the example above Data bytes 2 5 3F 9D 70 A4 which equals a decimal value of 1 23o https racelogic support 01V...

Page 4: ...iciently and the Slip and Pitch channels are less likely to drop out If the expected angle between the antennas will be greater than 10o then the LEVEL option should be disabled set to NO Note When the antenna separation is 2 m the RTK lock is very resilient in most conditions and scenarios when the Level option is not enabled https racelogic support 01VBOX_data_loggers VBOX_II_Range VBOX_II_User_...

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