Xylem SDI-12 RADAR - Manual (Page 31)

The Send identification Command responds with sensor vendor, model, and version data. any
measurement data in the sensor’s buffer is not disturbed.
Command response
“ai!” “allccccccccmmmmmmvvvxx...xx”
where:
a is the sensor address (“0-9”, “a-Z”, “a-z”, “*”, “?”).
i is an upper-case aSCii character.
ll is the SDi-12 version compatibility level, e.g. version 1.2 is represented as “12”.
cccccccc is an 8 character vendor identification to be specified by the vendor and usually
in the form of a company name or its abbreviation.
mmmmmm is a 6 character field specifying the sensor model number.
vvv is a 3 character field specifying the sensor version number.
SDI-12 Command & Response
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where:
a is the sensor address (“0-9”, “a-Z”, “a-z”, “*”, “?”).
V is an upper-case aSCii character.
ttt is a three digit integer (000-999) specifying the maximum time, in seconds, the sensor
will take to complete the command and have data available in its buffer.
n is a single digit integer (0-9) specifying the number of values that will be placed in the
data buffer. if “n” is zero (0), no data will be available using subsequent “D” commands
example of an “aV!” command:
Command response Time Values Description
"aV!" “a0013” 1 sec 3 return fixed data and
diagnostic data for testing
purposes.
Subsequent Command response
"aD0" a+123.456+78.9+y
Key Description Units
+123.456 Fixed test data
+78.9 Fixed test data
y rom checksum test 0 = Failed, 1 = Passed
Send identification Command