Vaisala WINDCAP WS425 Guia do Utilizador descarregar pdf (Página 55)

Chapter 4 ________________________________________________________________ Operation

VAISALA _______________________________________________________________________ 55

Standard SDI-12 Commands Supported

by WS425

Acknowledge Active Command (a!)

This command is used to ensure that a sensor is responding to a data

recorder or another SDI-12 device. It asks a sensor to acknowledge its

presence on the SDI-12 bus.

The command is the following:

where

a = The sensor address.

! = Terminates the command.

The response is the following:

a<CR><LF>

where

a = The sensor address. The default values is zero

(0).

<CR><LF> = Terminates the response.

The following is an example of the command:

The following is an example of the response:

0<CR><LF>

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Vaisala WINDCAP WS425 Guia do Utilizador Página 55