D.2 sdi-12 transparent mode, D.2.1 cr200(x) series datalogger example, D.2.1 – Campbell Scientific CS470/CS471 Compact Bubbler System User Manual
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Appendix D. SDI-12 Sensor Support
TABLE D-2. Send Data Return Values
SDI-12
Command
Number of
Values
Returned
Values Returned
D!
7
Level [m], Level [cm], Level [ft],
Pressure [mbar], Pressure [psi],
Temperature [°C], Status
D0!
1
Level [m]; resolution: 0.001 m
D1!
1
Level [cm]; resolution: 1 cm
D2!
1
Level [ft]; resolution: 0.01 ft
D3!
1
Pressure [mbar]; resolution: 0.01 mbar
D4!
1
Pressure [psi]; resolution: 0.001 psi
D5!
1
Temperature [°C]; resolution: 0.1 °C
D6!
1
Status
D.2 SDI-12 Transparent Mode
System operators can manually interrogate and enter settings in probes using
transparent mode. Transparent mode is useful in troubleshooting SDI-12
systems because it allows direct communication with probes. Datalogger
security may need to be unlocked before transparent mode can be activated.
Transparent mode is entered while the PC is in telecommunications with the
datalogger through a terminal emulator program. It is easily accessed through
Campbell Scientific datalogger support software, but is also accessible with
terminal emulator programs such as Windows HyperTerminal. Datalogger
keyboards and displays cannot be used.
The terminal emulator is accessed by navigating to the Datalogger menu in
PC200W, the Tools menu in PC400, or the Datalogger menu in the Connect
screen of LoggerNet.
The following examples show how to use LoggerNet software to enter
transparent mode and change the SDI-12 address of a CS470/CS471 sensor.
The same steps are used to enter transparent mode with PC200W and PC400
software after accessing the terminal emulator as previously described.
D.2.1 CR200(X) Series Datalogger Example
1. Connect a single CS470/CS471 to the CR200(X) (see TABLE 7-2)
2. In the LoggerNet Connect screen, navigate to the
Datalogger menu and
select
Terminal Emulator. The terminal emulator window will open. In
the
Select Device menu, located in the lower left-hand side of the window,
select the CR200Series station.
3. Click on the
Open Terminal button.
D-3