Vaisala WXT520 - Manual (Page 80)

User’s Guide ______________________________________________________________________
78 __________________________________________________________________ M210906EN-C
Example of asking the CRC for the wind data message query ar1:
Command format: ar1yyy<cr><lf>
Response:
atX,Use chksum GoeIU~<cr><lf>
Example of the other data query commands with CRC (when the
device address is 0):
In every case the response contains a three-character CRC before the
<cr><lf>.
For selecting the parameters to be included in the response messages,
changing the units and making other configurations of the measured
parameters, see
Chapter 8, Sensor and Data Message Settings, on page
107 .
where
a
= Device address
r1 = Wind message query command
yyy = Arbitrary three-character CRC
<cr><lf> = Command terminator
where
a
= Device address
tX,Use
chksum = Text prompt
Goe = Correct three-character CRC for the ar1 command
IU~ = Three-character CRC for the response message
<cr><lf> = Response terminator
Pressure, humidity and
temperature message query = 0r2Gje<cr><lf>
Precipitation query = 0r3Kid<cr><lf>
Supervisor query = 0r5Kcd<cr><lf>
Combined message query = 0rBVT<cr><lf>
Composite data message query = 0r0Kld<cr><lf>