Send identification command (ai) – Vaisala WMT52 User Manual
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User’s Guide ______________________________________________________________________
74 ___________________________________________________________________M210925EN-B
The response:
b
Example (changing address from 0 to 3):
0A3!3
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
where
b
=
Device address = the new address (or the original
address, if the device is unable to change it)
=
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
=
Response terminator