Campbell Scientific Sentek EnviroSCAN EasyAG SDI-12 Manual v 3.4 - Manual (Page 16)

EnviroSMART & EasyAG SDI-12 Probe Manual
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Soil Moisture Values (aC!)
The Start Concurrent Measurement command (aC! or aCn!) “aC!” allows all soil moisture values to be
sampled with a single command. Values are gathered in the same way as for the Start Measurement
command (aM! or aMn!), but the Send Data command (aDn!) may return up to eight(8) values.
Command Response
aC! A02116
The response indicates that 16 soil moisture values will be available after a time of 21 seconds. The
controlling device will then issue Send Data commands (aDn!) to read the values.
Command Response
aD0! a+001.0000+001.1234+000.0200+000.1234+000.0000
+123.1234+010.1200+000.1243
aD1! a+044.8750+002.0010+003.1234+001.0200+011.1234
+001.0100+001.0100+011.3344
Note: The EnviroSMART and EasyAG SDI-12 probe interface will not issue a service request for this
command.
Note: Refer to notes on Start Measurement (aM! or aMn!) command above.
Salinity Values (aC1!)
The Start Concurrent Measurement command (aC! or aCn!) “aC1!” allows all salinity values to be
sampled with a single command. Values are gathered in the same way as for the Start Measurement
command (aM! or aMn!), but the Send Data command (aDn!) may return up to eight(8) values.
Command Response
aC1! A03616
The response indicates that 16 salinity values will be available after 36 seconds. The controlling device
will then issue Send Data commands (aDn!) to read the values.
Command Response
aD0! a+001.0000+001.1234+000.0200+000.1234+000.0000
+123.1234+010.1200+000.1243
aD1! a+044.8750+002.0010+003.1234+001.0200+011.1234
+001.0100+001.0100+011.3344
Note: The EnviroSMART and EasyAG SDI-12 probe interface will not issue a service request for this
command.