Campbell-scientific EnviroSCAN Sentek Water Content Profile Probe Manual do Utilizador descarregar pdf (Página 41)

Appendix E. SDI-12 Commands

The SDI-12 EnviroSMART probe interface communicates with Campbell

Scientific dataloggers by way of SDI-12 protocol. A complete treatment of

SDI-12 communications for the EnviroSMART is available from Sentek or

Campbell Scientific in the EnviroSMART & EasyAG SDI-12 Probe Interface

Manual. Commonly used commands are listed below. Refer to Edlog and

CRBasic help for information on how to use these commands while

programming Campbell Scientific dataloggers.

The EnviroSMART probe interface accepts SDI-12 addresses in the range of

“0” to “9”, “A” to “Z”, and “a” to “z”.

SDI-12

Command*

Function

aAb! Change address (for use in terminal emulator)

aM! Read soil moisture values 1 to 9

aM1! Read soil moisture values 10 – 16

aM2! Read salinity values 1 to 9

aM3! Read salinity values 10 to 16

*where “a” is the probe address

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Campbell-scientific EnviroSCAN Sentek Water Content Profile Probe Manual do Utilizador Página 41