Campbell-scientific Sentek EnviroSCAN EasyAG SDI-12 Manual v 3.4 Manual de usuario descargar pdf (Pagina 16)

EnviroSMART & EasyAG SDI-12 Probe Manual

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<CR><LF>

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<CR><LF>

aD1! a+044.8750+002.0010+003.1234+001.0200+011.1234

+001.0100+001.0100+011.3344<CR><LF>

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<CR><LF>

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<CR><LF>

aD1! a+044.8750+002.0010+003.1234+001.0200+011.1234

+001.0100+001.0100+011.3344<CR><LF>

Note: The EnviroSMART and EasyAG SDI-12 probe interface will not issue a service request for this

command.

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Campbell-scientific Sentek EnviroSCAN EasyAG SDI-12 Manual v 3.4 Manual de usuario Pagina 16