ADS-270 User Guide
14
aD0! (aD1!...aD9!)
The addressed sensor responds with:
a<values><CR><LF>
where,
<values> - pd.d
p - the polarity sign (+ or -)
d - numeric digits before the decimal place . - the decimal point (optional)
d - numeric digits after the decimal point. the maximum number of digits for a data
value is 7, even without a decimal point, the minimum number of digits for a data
value (excluding the decimal point) is 1, the maximum number of characters in a
data value is 9 (the (polarity sign + 7 the decimal point))
Example
:
A soil measurement sensor returns three parameters:
1. Soil moisture in Water fraction by Volume (wfv)
2. Soil Conductivity in Siemens/Meter (S/m)
3. Temperature in
°C
Two sensors (addresses 1 and 2) are connected to the SDI-12 serial bus.
The configuration commands are:
1230,1,1,0,1
1230,2,1,0,2
1230,3,1,0,3
1230,4,1,0,1
1230,5,1,0,2
1230,6,1,0,3
4.3.2 Clear SDI-12 channel configuration
The command clears the specified SDI-12 channel configuration.
1238,n
1238: Command ID
n:
1-8, SDI-12 number
4.3.3 Clear all SDI-12 channels
The command clears all declared SDI-12 channels.
1239
1239: Command ID
