Standard sdi-12 commands supported by ws425, Acknowledge active command (a!) – Vaisala WS425 User Manual
Page 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:
a!
where
a
=
The sensor address.
!
=
Terminates the command.
The response is the following:
a
where
a
=
The sensor address. The default values is zero
(0).
=
Terminates the response.
The following is an example of the command:
0!
The following is an example of the response:
0