User's Guide _______________________________________________________________________
62 ___________________________________________________________________ M210470EN-B
TXT text transmission
These short text messages and their interpretation are shown in Error
messaging /Text messages table, on page 81.
The text transmission response format:
$WITXT,xx,xx,xx,c--c*hh<cr><lf>
where
$
=
Start of the message
WI
=
Talker identifier (WI=weather instrument)
TXT
=
Text transmission identifier.
xx
=
Total number of messages, 01 to 99
xx
=
Message number.
xx
=
Text identifier (see text message table)
c---c
=
Text message (see text message table)
*
Checksum delimiter
hh
=
A two character checksum for the query command. The
first character is always *
<cr><lf>
=
Response terminator
Examples:
$WItXT,01,01,01,Unable to measure error*6D<crlf>
(wind
data request when all the wind parameters were disabled from the
wind message).
$WITXT,01,01,03,Unknown cmd error*1F
(unknown command
0XO!<cr><lf>).
$WITXT,01,01,08,Use chksum 2F*72
(wrong checksum used in
MWV query command)
NMEA 0183 v3.0, Automatic
When NMEA 0183 v3.0 automatic protocol is selected, the transmitter
sends data messages at user configurable update intervals. The
message format is the same as in the MWV and XDR data queries.
The NMEA wind formatter parameter in the wind sensor settings
determines whether the wind messages are sent in MWV or XDR
format.
