Heating slope dependent upon outdoor temperature (weather compensation)
At input (Tt), the setpoint temperature is read. The current outside temperature is read in at input (Ct). The parameter (S) is used to set the slope, and must be adapted to the respective heating system.
Table of Contents
Inputs↑
| Abbreviation | Summary | Description | Unit | Value Range |
|---|---|---|---|---|
| Tt | Target temperature | Analog input target temperature | ° | ∞ |
| Ct | Current temperature | Analog input current outdoor temperature | ° | ∞ |
| Dis | Disable | Disables input (Tt) when On. (Child lock) | - | 0/1 |
Outputs↑
| Abbreviation | Summary | Description | Unit | Value Range |
|---|---|---|---|---|
| Ft | Flow temperature | ° | ∞ | |
| Iv | Invalid values | 1 when (Ft) would exceed (minFt) or (maxFt) | - | 0/1 |
Parameters↑
| Abbreviation | Summary | Unit | Value Range | Default Value |
|---|---|---|---|---|
| S | Slope | - | 0.05...2.5 | 1,3 |
| O | Offset | - | ∞ | 0 |
| minFt | Minimum flow temperature | ° | ∞ | 15 |
| maxFt | Maximum flow temperature | ° | ∞ | 65 |
Curve↑
Image source: http://de.wikipedia.org/wiki/Heizkurve
This characteristic relates to a setpoint temperature (input Tt) of 20 ° C.