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9.8.16 Basic stage heating - Control value difference for sending of heating control value
Options:
2 %
5 %
10 %
Send cyclic only
The control values of the 0 - 100% PI continuous controller are not transmitted after every calculation. Instead, they are transmitted when the calculation
results in a value that is different enough to the previous sent value to make a transmission meaningful. This value difference can be entered here.
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".
9.8.17 Basic stage heating - Cyclic sending of the control value (min)
Options:
Setting option between 1 - 60 minutes
The current control value used by the device can be cyclically transmitted to the bus.
Note:
This parameter is only available when the "Control value type" parameter is set either on "2-point 1 Byte, 0/100%", "PI continuous, 0-100%" or "Fan coil".
9.8.18 Basic stage heating - PWM cycle heating (min)
Options:
Setting option between 1 - 60 minutes
In PI PWM, On/off the control value percentage values are converted into a pulse-interval signal. This means that a selected PWM cycle will be divided into
an on-phase and an off-phase based on the control value. Accordingly, a control value output of 33% in a PWM cycle of 15 min. results in an "On-phase" of
five minutes and an "Off-phase" of 10 min. The time for a PWM cycle can be specified here.
Note:
This parameter is only available when the "Control value type" parameter is set on "PI PWM, On/Off“.
9.8.19 Basic stage heating - Maximum control value (0 - 255)
Options:
Setting option between 0 - 255
The maximum control value of the PI controller defines the maximum value outputted by the controller. If a maximum value under 255 is chosen, the value will
not be exceeded, even if the controller calculates a higher control value.
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".
9.8.20 Basic stage heating - Minimum control value for basic load (0 to 255)
Options:
Setting option between 0 - 255
The minimum control value of the PI controller defines the minimum value output by the controller. If a minimum value greater than zero is chosen, the control-
ler will not output a lower value, even if it calculates a value that is lower. This parameter can be used to set a basic load, e.g. for operating floor heating. Even
if the controller calculates the control value zero, a heating medium will flow through the floor heating system to prevent the floor from cooling down. Under
"Settings of basic load", it is also possible to define whether this basic load will be permanently active or whether it will be switched by the "Basic load" object.
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".
9.8.21 Control of additional heating stage
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 "Heat-
ing with additional stage" or "Heating and cooling with additional stages".
Description of application and parameters
"RTC object" application
