Vaisala WS425 - Manual (Page 60)

USER'S GUIDE____________________________________________________________________
60 __________________________________________________________________ M210361EN-E
When the previous command WS aV! is given, the response is the
following:
a<watchdog><WS_unit><SDI-mode><spare><CR><LF>
where
a = The sensor address.
<watchdog> = The number of times the watchdog has
triggered. Ideally should be zero. Format: +(c)c
<WS_unit> = Wind speed unit. The options are:
+0 = mph
+1 = kt
+2 = km/h
+3 = m/s
<SDI-mode> = Current submode setting. The options are:
+0 = SDI-12 submode A
+1 = SDI-12 submode B
<spare> = 1 digit for factory use, format: +c
<CR><LF> = Terminates the response.
The above are verification data fields.
Continuous Measurements (aR0!)
A sensor that is able to continuously monitor the phenomena to be
measured, does not require a start measurement command (M!). The data
can be read directly with the R0! command.
WS425 uses this command when the sensor is set to work in SDI-12
submode B. The command retrieves averaged wind data and gust wind
data. The averaging time window is selectable between 3 and 3600
seconds.
The command is the following:
aR0!
where
a = The sensor address.
R0 = The send continuous measurements command.
! = Terminates the command.