Motivity v1.3
Technical Documentation
Feedback about the current mode can be obtained through the mode feedback status objects
or through the HVAC status object (DPT_HVACStatus).
Status and Errors
Through the RHCC Status Feedback object (DPT 22.101) you can track the status of the
thermostat. Following bits are implemented:
Bit0 : Fault
Bit7 : Heating Disabled
Bit8 : HeatCool mode
Bit11 : Cooling Disabled
Bit12 : DewPoint status
Bit13 : FrostAlarm
Bit14 : Overheat Alarm
Bit 6 (Controller Status) of the HVAC Status object indicates whether the thermostat is
actively heating/cooling.
The “Dewing Point Alarm” will disable the cooling immediately.
Frost Alarm will be set if the temperature drops below the frost protection setpoint. Overheat
alarm when temperature is higher than the heat protection temperature.
Setpoint
The setpoint can be controlled in 2 ways
•
by writing a new temperature to the Setpoint object
•
Using the Setpoint Adjustment object. This can either be a floating point offset or a 1
bit switch object. The latter you can use to change the setpoint using button input.
Writing a 0(up) will increase the offset with 0,5 K, writing a 1 (Down) will decrease it.
You can also limit the values that are written directly to the setpoint object, by setting “New
Setpoint within Adjustment bounds” to “Yes”.
Feedback of the setpoint , or the adjustment, will be given through the feedback objects.
Actual Temperature
It's possible to use an external temperature sensor to determine the actual temperature of the
room, optionally for a certain proportion. Feedback on the calculated temperature can be
obtained through the “Actual Temperature Feedback” object.
©
Tense BVBA
15/03/17
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