Campbell Scientific TDRSDK Software Developement Kit - Manual (Page 22)

Appendix A. TDR100 Command Protocol
A-2
Type 2 Commands (Gets Values)
CMD HL Results
:DUMP 36 Get Vp, Average, Points, Distance, Window Length, Probe
Length, Probe Offset,
Cell Constant, Smooth Factor.
:GCAL 17 Get Calibration Voltage Value
:GCON 27 Get Conductivity Value
:GDTS 32 Get Distance to Short Value
:GLDR 29 Get Last Derivative Value
:GLWF 30 Get Last Waveform (no new acquisition)
:GMOS 36 Get Moisture Value
:GNDR 28 Get New Derivative waveform
:GNWA 20 Get Waveform, no calibration
:GRLN 33 Get last calculated Cable Reference Length Value
:GTIM 31 Get Time Values (Power Delay, Acq. Waveform, Moisture
Result)
:GVAR 30 Get Variables (Start, End, RMS)
:GVER 34 Get Boot Code (version, signature), Operating
System(version, signature)
:GWAV 35 Acquire and return Waveform
Type 3 Commands (No values set or returned)
CMD HL Results
:ABRT 29 A NOP instruction which can be used to Abort the current
command.
:ANWA 27 Acquire Waveform with Calibration
:AWAV 2F Acquire Waveform
:RSET 3E Retrieve Setup
:SOFF 2E Set Analog Power Off
:SRLN 3F Set Cable Reference Length - for liquid level measurements
:SSET 3F Save Setup
Commands are aborted if the start of a new command is received before the
finish of current command.