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Main Functions
Controlling the 230V output of your Node
The 230V output (called «
Out
» in status messages) of a Node is always in either of the two following
modes, illustrated in the figure below with the corresponding SMS commands:
•
Manual on/off control
for turning on and off lamps, pumps, computers, etc. If a heater is turned
on this way, it’s the heater’s own thermostat that determines the scheduled temperature.
•
Thermostatic regulation
consists in managing precisely the ambient temperature produced by a
heating appliance such as a convector heater. The Node is then a substitute to the heater’s own
thermostat (which should be left on the highest available position), enabling you to set the
scheduled temperature by SMS. E.g., send this SMS to
activate
thermostatic regulation on
Node
#01
with a lower «
eco-temperature
» at
+6°C
(for when you are away) and a higher «
comfort
temperature
» at
+20°C
(for when you are on the premises):
1234
L
01
1
+06
+20
Once a Node is in thermostatic regulation mode, you will simply switch between the lower and the
higher scheduled temperature by means of the on/off command
R.
Command
L
01
0
will
deactivate
thermostatic regulation and revert to the manual control mode (on
Node
#01
).
NB: temperatures are always written with a ‘+’ or ‘-’ sign followed by two digits (e.g.,
+06
for +6°C).
NB: a temperature sensor must be plugged into input #1 of the Node to enable thermostatic regulation.
Manual control
Thermostatic regulation
Above: SMS commands for manual on/off and for switching between comfort/eco temperatures (e.g. +20°C resp. +6°C).
How does thermostatic regulation work?
The Node arranges for the desired ambient temperature by turning the heater on until that temperature is
attained. When this is achieved, the Node cuts off the power, thus turning off the heater. As soon as the
ambient temperature falls by at least one degree Celsius, the Node will admit power to the heater again,
until the temperature reaches the desired value on more time. This cycle repeats ad infinitum. Concretely,
during this automated activity, the Node will spontaneously toggle its 230V socket between
on
(green
front LED and status «
Out.On
») and
off
(red front LED and status «
Out.Off »
) and vice-versa.
