u-blox ZED-F9P Interface Description - Manual
Advance Information
TXT continued
Field
No.
Name Unit Format Example Description
Field
No.
Name Unit Format Example Description
0 xxTXT - string $GPTXT TXT Message ID (xx = current Talker ID)
1 numMsg - numeric 01 Total number of messages in this transmission, 01..
99
2 msgNum - numeric 01 Message number in this transmission, range 01..xx
3 msgType - numeric 02 Text identifier, u-blox receivers specify the type of
the message with this number.
00: Error
01: Warning
02: Notice
07: User
4 text - string www.u-blox.
com
Any ASCII text
5 cs - hexadecimal *67 Checksum
6 <CR><LF> - character - Carriage return and line feed
4.2.16 VLW
4.2.16.1 Dual ground/water distance
Message
VLW
Description
Dual ground/water distance
Firmware
Supported on:
• u-blox 9 with protocol version 27
Type
Output Message
Comment
The distance traveled, relative to the water and over the ground. This message relates to
the Odometer functionality.
ID for CFG-MSG Number of fields
Message Info
0xF0 0x0F 11
Message Structure:
$xxVLW,twd,twdUnit,wd,wdUnit,tgd,tgdUnit,gd,gdUnit*cs<CR><LF>
Example:
$GPVLW,,N,,N,15.8,N,1.2,N*06
Field
No.
Name Unit Format Example Description
0 xxVLW - string $GPVLW VLW Message ID (xx = current Talker ID)
1 twd nm numeric - Total cumulative water distance, not output
2 twdUnit - character N Fixed field: nautical miles
3 wd nm numeric - Water distance since reset, not output
4 wdUnit - character N Fixed field: nautical miles
5 tgd nm numeric 15.8 Total cumulative ground distance
6 tgdUnit - character N Fixed field: nautical miles
7 gd nm numeric 1.2 Ground distance since reset
8 gdUnit - character N Fixed field: nautical miles
UBX-18010854 - R04 Advance Information Page 25 of 259