Vaisala WINDCAP WS425 Guide de l'utilisateur télécharger pdf (Page 61)

Chapter 4 ________________________________________________________________ Operation

VAISALA _______________________________________________________________________ 61

The response is the following:

a<WS_ave><WD_ave><GS><GD><CR><LF>

where

a = The sensor address.

<WS_ave> = Average wind speed over the past yyyy

seconds

in currently active units. Format: +(ss)s.s

<WD_ave> = Average wind direction over the past yyy

seconds in degrees. Format +(dd)d

<GS> = Gust wind speed; the highest n

measurement

running average during the past yyyy

seconds,

in currently active units. Format: +(ss)s.s

<GD> = Gust direction; n

second average over the same

time period as the gust speed. Format: +(dd)d.

<CR><LF> = Terminates the response.

The parameters yyyy and n are issued to the sensor as a part of the

"Place sensor in submode B (aXQx;c.c;n;yyyy!)" command. This

command must be given to the sensor before aR0!. See the command

description for aXQ...! for full description of the parameters.

Start Verification (aV!)

This command tells the sensor to return a verification in response to a

following D0! command. The WS425 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 sensor address.

V = The start verification command.

! = Terminates the command.

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Vaisala WINDCAP WS425 Guide de l'utilisateur Page 61