Operation Manual

Z41 Pro
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1. The first touch on the increase button will trigger the sending of the value
“0.5”, so that the thermostat sets the setpoint to 25.5ºC. This value will be
then sent through the status object, and afterwards shown by Z41 Pro in
the corresponding box.
2. A second touch will trigger the value “1”, after which the setpoint will
become 26ºC.
3. On the third touch, the value sent will be “1.5”, so the setpoint will be set to
26.5ºC.
And so on until the offset sent becomes 10 (setpoint of 35ºC). Any further
presses on the increase button will send the value “10” again, so the setpoint
will remain at 35ºC, while touching the decrease button for the first time will
trigger the sending of the value “9.5”, setting the temperature back to 34.5ºC.
On the second button press, the value “9” will be sent, and the setpoint will
become 34ºC. And so on until an offset of “-10” (setpoint of 15ºC) is reached.
From that moment, any further presses on the decrease button will re-send the
value “-10” and the setpoint will remain at 15ºC.
Important: the control object for the floating point relative setpoint control
has its Write flag enabled with the intention of permitting the reception of
feedback from the thermostat, which may reset or modify the status of the
offset for any reason at any time. This feedback allows that Z41 Pro
updates its own value to equal that from the external thermostat. Thinking
of the above example, if Z41 Pro receives the value “0” after having the
user performed three presses on the increase button (therefore, after
having been sent the value “1.5” to the bus), it will happen that on the forth
press the value sent will be “0.5” and not “2”.
Figure 56 Relative (Float) Setpoint Control. Object Linking.
Z41
Pro
Thermostat
Control object
Status object
Offset
Offset (status)
Setpoint T. (status)