Vaisala WMT52 - Manual (Page 76)

User’s Guide ______________________________________________________________________
74 ___________________________________________________________________M210925EN-B
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!
The response:
a13ccccccccmmmmmmvvvxxxxxxxx<cr><lf>
where
b
= Device address = the new address (or the original
address, if the device is unable to change it)
<cr><lf> = Response terminator
where
a
= Device address
I = Send identification command
! = Command terminator
where
a
= Device address
13 = The SDI-12 version number, indicating SDI-12
version compatibility; for example, version 1.3 is
encoded as 13
cccccccc = 8-character vendor identification Vaisala_
mmmmmm = 6 characters specifying the sensor model number
vvv = 3 characters specifying the firmware version
xxxxxxxx = 8-character serial number
<cr><lf> = Response terminator