Vaisala WMT700 - Manual (Page 71)

Chapter 5 ______________________________ Operating WMT700 with WS425 and SDI-12 profiles
VAISALA _______________________________________________________________________ 69
aV! — Start Verification
This command starts verification. However, WMT700 does not return
verification data directly after this command. It sends a response that
specifies when the verification results can be retrieved using the aD0!
command and the number of parameters. The WMT700 verification data
includes a watchdog count, sensor measurement unit settings, and the
current SDI mode setting.
The command is the following:
aV!
where
a = The single-digit WMT700 address that corresponds to the first
character of the address value.
V = The start verification command.
! = Terminates the command.
The response is the following:
atttn<CR><LF>
where
a
= The single-digit WMT700 address that corresponds to
the first character of the address value.
ttt = The period of time, in seconds, after which WMT700 has
the verification data ready .
n = The number of verification data fields that will be
returned.
<CR><LF> = Terminates the response.
Example of the command and response:
1V!
10014<CR><LF>
Interpretation of the example message:
- Time when the measurement is ready: 1 second
- Number of returned measurement values: 4
To fetch the measurement results, use the aD0! command.