ABB tacteo KNX - Additional Heating Stage; Additional Heating Stage - Mode of the Control Value; Additional Heating Stage - Hysteresis (X 0.1°C); Additional Heating Stage - Control Value Difference for Sending of Heating Control Value

Description of application and parameters
Application "Function block RTC"
Product manual 2CKA001473B9482
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11.5.35 Additional heating stage
Note
Only available when the "Extended settings" parameter under "Control of
additional heating stage" is set on "Yes".
11.5.36 Additional heating stage — Mode of the control value
Options: Normal
Inverse
The mode of the control value can be used to adapt the control value to de-energised opened
(normal) or de-energised closed (inverse) valves.
– N
ormal : Value 0 means "Valve closed".
–
Inverse : Value 0 means "Valve open".
11.5.37 Additional heating stage — Hysteresis (x 0.1°C)
Options: Setting option between 3 - 255
The hysteresis of the two-point controller specifies the fluctuation range of the controller around
the setpoint value. The lower switching point is located at "Setpoint value minus hysteresis" and
the upper point is at "Setpoint value plus hysteresis".
Note
This parameter is only available when the "Control value type" parameter is set
either on "2-point 1 Bit, Off/On" or "2-point 1 Byte, 0/100%".
11.5.38 Additional heating stage — 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".