Vaisala WXT510 - Manual (Page 71)

Chapter 7 __________________________________________________ Getting the Data Messages
VAISALA _______________________________________________________________________ 69
Change Address Command (aAb)
This command changes the device address. After the command has
been issued and responded to, the sensor is not required to respond to
another command for one second time in order to ensure writing the
new address to the non-volatile memory.
Command format: aAb!
The response:
b<cr><lf>
Example (changing address from 0 to 3):
0A3!3<cr><lf>
Send Identification Command (aI)
This command is used to query the device for the SDI-12 compatibility
level, model number, and firmware version and serial number.
Command format: aI!
where
a
= Device address
A = Change address command
b = Address to change to
! = Command terminator
where
b
= Device address = the new address (or the original
address, if the device is unable to change it)
<cr><lf> = Response terminator