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9.8.4 General - Additional functions
Options:
No
Yes
- This parameter enables additional functions and communication objects, e.g. window contact and presence detector.
9.8.5 General - Send cyclic "In operation" (min)
Options:
Setting option between 5 - 3000 minutes
- The "In operation" communication object serves to inform that the controller still operates. Value "1" is sent cyclic. This parameter is used to set the cycle
for sending. If the cyclic telegram fails, the function of the device is faulty and the air-conditioning of the room can be maintained with a forced operation.
However, for this the system and/or actuator must have "Forced operation" function.
Note:
This parameter is only available if the "Additional function" parameter is set to "Yes".
9.8.6 Heating control
Note:
Only available when the "Device function" parameter is set on either "Single device" or "Master device" and the control function parameter is set on either
"Heating", "Heating with additional stage", "Heating and cooling" or "Heating and cooling with additional stages".
9.8.7 Heating control - Control value type
Options:
2-point 1 bit, Off/On
2-point 1 byte, (0/100%)
PI continuous, 0-100%
PI PWM, On/Off
Fan coil
The actuation of the control valve is determined by the selection of the controller type.
-
2-Point 1 Bit, Off/On
: The 2-point control is the simplest type of control. The controller switches on when the room temperature drops below a certain level
(setpoint temperature value minus hysteresis) and switches off when a particular value (setpoint temperature value plus hysteresis) is exceeded. The switch-
on and switch-off commands are transmitted as 1-bit commands.
-
2-Point 1 Byte, 0/100%
: This is another two-point control as described above. In this case, however, the switch-on and switch-off commands are transmit-
ted as 1-byte values (0% / 100%).
-
PI continuous, 0-100%
: The PI controller adjusts its output value between 0% and 100% to match the difference between the actual value and the setpoint
value and enables a precise regulation of the room temperature to the setpoint value. It sends the control value to the bus as a 1-byte value (0% - 100%).
To reduce the bus load, the control value is only transmitted if it has changed by a predefined percentage in relation to the previous sent value. The control
value can also be transmitted cyclically.
-
PI PWM, On/Off
: This also is a PI controller. Here, the output is a 1-bit command. For this to occur, the calculated control value is converted into a pulse-
interval signal.
-
Fan coil
: The fan coil controller operates like the PI continuous controller. In addition, it allows the separate activation of the fan in the fan coil unit (e.g. fan
speed levels 1 - 3).
9.8.8 Heating control - Heating type
Options:
PI continuous, 0 – 100% and PI PWM, On/Off:
• Area (e.g. floor heating) 4°C 200 min
• Convector (e.g. heater) 1.5°C 100 min
• Free configuration
Fan coil
• Fan coil 4°C 90 min
• Free configuration
Multiple heating types (panel heating, convector heating or fan coil) with preset parameters are available to the user.
- If the required heating type is not available, individual parameters can be specified in free configuration.
Note:
This parameter is only available when "Control value type" parameter is set either on "PI continuous, 0 – 100%", "PI PWM, On/Off“ or "Fan coil".
Description of application and parameters
"RTC object" application
