User's Manual

Table Of Contents
CHAPTER 3
Using terminal commands
39
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COMMAND SDI
DESCRIPTION Command to query and configure the SDI-12 subsystem.
PARAMETERS The command has a multitude of options. If issued without param-
eters, the GET variant is implied, i.e. the status of the SDI-12 sub-
system will be returned (see also below). The full extent of the
commands is not given here as the the SDI-12 subsystem is config-
ured via the wireless link by using the GUI configurator in the
A840/A850 Telemetry Gateway. Additional information can be
obtained from Adcon Telemetry upon request.
RETURNS The first group of characters specify whether SDI is enabled
(uppercase) or disabled (lowercase) for the corresponding IOx port
(note: current devices only support SDI on port IOA).
The second group of characters specify whether SDI powersave
mode is enabled (uppercase) or disabled (lowercase) for the corre-
sponding IOx port. If powersave is enabled, the sensor power sup-
ply is only turned on while the RTU sends commands to the sensor
or waits for an answer (or measurement data).
The remaining character specify flags:
x/X = SDI direct command in progress (X)
m/M = Measurement in progress (M)
d/D = Discovery in progress (D)
v/V = Values for storage available (V)
In the sensor list, there are additional measurement methods sup-
ported. The methods now available are:
M - Normal measurement