Vaisala WXT510 - Manual (Page 93)

Chapter 7 __________________________________________________ Getting the Data Messages
VAISALA _______________________________________________________________________ 91
Examples:
$WItXT,01,01,01,Unable to measure error*6D<cr><lf> (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)
Automatic Mode
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.
You can use ASCII data query commands aR1, aR2, aR3, aR5, aR,
aR0 and their CRC-versions ar1, ar2, ar3, ar5, ar and ar0 also in
NMEA 0183 protocol. The responses to these commands will be in
standard NMEA 0183 format. For formatting the messages, see
Chapter
8, Sensor and Data Message Settings, on page 93 .
Automatic Composite Data
Message
When automatic composite data messaging is selected, the transmitter
sends composite data messages at user configurable intervals. The
message structure is the same as with the composite data query
command aR0 and contains a user configurable set of wind, pressure,
temperature, humidity, precipitation and supervisor data.
xx = Text identifier (see text message table)
c---c = Text message (see text message table)
* Checksum delimiter
hh = Two-character checksum for the query command.
<cr><lf> = Response terminator