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SDI-12 commands
SDI-12 commands
SDI-12 details are best handled by the GP2 logger controller itself within a
logging program, as described in these previous sections
For system integrators and users of loggers from other companies see the
WET150 SDI-12
Programmer’s Guide.
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This section gives an introduction to SDI-12 commands
The format of SDI-12 commands and responses can become complicated
in real-world use on a network of many devices.
Fortunately, just two simple commands are required for changing sensor
addresses:
• Address Query – find out the existing address of the single WET150
connected to the GP2
• Address Assign – change the existing address to a new address
The following examples explain what you need to type in the command
entry box and how to interpret responses in the terminal window. Full
details of these and all SDI-12 commands used by the WET150 are given in
the
WET150 SDI-12
Programmer’s Guide
available as a PDF at
The examples assume that the GP2’s in12V supply (la12V
0.5A) is being used for SDI-12 power. The GP2 automatically enables this
supply when sending SDI-12 commands.