Vaisala WS425 - Manual (Page 57)

Chapter 4 ________________________________________________________________ Operation
VAISALA _______________________________________________________________________ 57
The command is the following:
?!
where
? = Wildcard.
! = Terminates the command.
The response is the following:
a<CR><LF>
where
a = The sensor address.
<CR><LF> = Terminates the response.
Change Address Command (aAb!)
This command changes the address of a sensor. After this command has
been issued and responded to, the sensor is not required to respond to
another command for one second. This gives the sensor time to write the
new address to non-volatile memory.
The command is the following:
aAb!
where
a = The sensor address.
A = The change address command.
b = The address to change to.
! = Terminates the command.
The response is the following:
b<CR><LF>
where
b = The address of the sensor (will equal the new
address or the original address if the sensor is
unable to change the address).
<CR><LF> = Terminates the response.