FB_BC9191SetpointRoom
Application
The function block FB_BC9191SetpointRoom assigns setpoints for cooling and heating operation to each of the energy levels Protection, Economy, PreComfort and Comfort. In connection with the function block FB_BC9191EnergyLevel the room temperature controllers are assigned an energetically optimum setpoint in accordance with the use of the room and the selected heating or cooling operation.
The resulting setpoint for the different energy levels is made up of:
- the base setpoint value
- the local setpoint value shift (not in the case of the Protection setpoints)
- the central setpoint value shift (not in the case of the Protection setpoints)
The local shift due to a room setpoint generator and also the remote adjustment of the setpoints by a building management system only affect the Comfort and PreComfort energy levels.
VAR_INPUT
Name : Type
bSetDefault : BOOL;
bEnable : BOOL;
rSetpointShiftHeat : REAL;
rSetpointShiftCool : REAL;
rSetpointShiftUser : REAL;
bReset : BOOL;
bSetDefault: If the variable is TRUE, the default values of the VAR_IN_OUT variables are adopted.
bEnable: The function block is activated if the variable bEnable is TRUE.
rSetpointShiftHeat: The rSetpointShiftHeat variable is used for the adaptation of the ComfortHeating setpoint of the building management system.
If the ComfortHeating setpoint is raised, then the setpoints for the ComfortCooling and PreComfortCooling are also increased.
Example:
Energy levels |
| ProtectionHeating | EconomyHeating | PreComfortHeating | ComfortHeating | ComfortCooling | PreComfortCooling | EconomyCooling | ProtectionCooling |
|---|---|---|---|---|---|---|---|---|---|
Base setpoint value [°C] |
| 12 | 15 | 19 | 21 | 24 | 28 | 35 | 40 |
SetpointShiftHeat [K] | +3 | - | - | - | +3 | +3 | +3 | - | - |
Resulting setpoint [°C] |
| 12 | 15 | 19 | 24 | 27 | 31 | 35 | 40 |
A lowering of the ComfortHeating setpoint affects only the ComfortHeating and PreComfortHeating setpoints.
Example:
Energy levels |
| ProtectionHeating | EconomyHeating | PreComfortHeating | ComfortHeating | ComfortCooling | PreComfortCooling | EconomyCooling | ProtectionCooling |
|---|---|---|---|---|---|---|---|---|---|
Base setpoint value [°C] |
| 12 | 15 | 19 | 21 | 24 | 28 | 35 | 40 |
SetpointShiftHeat [K] | -3 | - | - | -3 | -3 | - | - | - | - |
Resulting setpoint [°C] |
| 12 | 15 | 16 | 18 | 24 | 28 | 35 | 40 |
rSetpointShiftCool: The rSetpointShiftCoolvariable is used for the adaptation of the ComfortCooling setpoint of the building management system.
If the ComfortCooling setpoint is raised, then the setpoint for the PreComfortCooling is also raised.
Example:
Energy levels |
| ProtectionHeating | EconomyHeating | PreComfortHeating | ComfortHeating | ComfortCooling | PreComfortCooling | EconomyCooling | ProtectionCooling |
|---|---|---|---|---|---|---|---|---|---|
Base setpoint value [°C] |
| 12 | 15 | 19 | 21 | 24 | 28 | 35 | 40 |
SetpointShiftCool [K] | +3 | - | - | - | - | +3 | +3 | - | - |
Resulting setpoint [°C] |
| 12 | 15 | 19 | 21 | 27 | 31 | 35 | 40 |
A lowering of the ComfortCooling setpoint only affects the ComfortCooling. The PreComfortCooling is not changed.
Example:
Energy levels |
| ProtectionHeating | EconomyHeating | PreComfortHeating | ComfortHeating | ComfortCooling | PreComfortCooling | EconomyCooling | ProtectionCooling |
|---|---|---|---|---|---|---|---|---|---|
Base setpoint value [°C] |
| 12 | 15 | 19 | 21 | 24 | 28 | 35 | 40 |
SetpointShiftCool [K] | -3 | - | - | - | - | -3 | - | - |
|
Resulting setpoint [°C] |
| 12 | 15 | 19 | 21 | 21 | 28 | 35 | 40 |
If the setpoint of the PreComfort energy level is shifted beyond the setpoint of the Economy level, then the setpoint of the Economy level adopts the value of the PreComfort level.
Example:
Energy levels |
| ProtectionHeating | EconomyHeating | PreComfortHeating | ComfortHeating | ComfortCooling | PreComfortCooling | EconomyCooling | ProtectionCooling |
|---|---|---|---|---|---|---|---|---|---|
Base setpoint value [°C] |
| 12 | 15 | 19 | 21 | 24 | 28 | 35 | 40 |
SetpointShiftCool [K] | +8 | - | - | - | - | +8 | +8 | - | - |
Resulting setpoint [°C] |
| 12 | 15 | 19 | 21 | 32 | 36 | 36 | 40 |
rSetpointShiftUser: The variable rSetpointShiftUser is used for local setpoint shifting of the user.
A positive value of rSetpointShiftUser affects the setpoint of ComfortHeating, ComfortCooling and PreComfortColling.
Example:
Energy levels |
| ProtectionHeating | EconomyHeating | PreComfortHeating | ComfortHeating | ComfortCooling | PreComfortCooling | EconomyCooling | ProtectionCooling |
|---|---|---|---|---|---|---|---|---|---|
Base setpoint value [°C] |
| 12 | 15 | 19 | 21 | 24 | 28 | 35 | 40 |
SetpointShiftUser [K] | +3 | - | - | - | +3 | +3 | +3 | - | - |
Resulting setpoint [°C] |
| 12 | 15 | 19 | 24 | 27 | 31 | 35 | 40 |
A negative value of rSetpointShiftUser affects the setpoints of PreComfortHeating, ComfortHeating and ComfortCooling.
Example:
Energy levels |
| ProtectionHeating | EconomyHeating | PreComfortHeating | ComfortHeating | ComfortCooling | PreComfortCooling | EconomyCooling | ProtectionCooling |
|---|---|---|---|---|---|---|---|---|---|
Base setpoint value [°C] |
| 12 | 15 | 19 | 21 | 24 | 28 | 35 | 40 |
SetpointShiftUser [K] | -3 | - | - | -3♠ | -3 | -3 | - | - | - |
Resulting setpoint [°C] |
| 12 | 15 | 16 | 18 | 21 | 28 | 35 | 40 |
bReset: Acknowledge input in case of a fault or an incorrect parameter.
VAR_OUTPUT
Name : Type
stSetpoint : ST_BC9191SetpointRoom;
bInvalidParameter : BOOL;
stSetpoint: Structure containing the setpoints for all energy levels.
bInvalidParameter: Indicates that an incorrect input parameter is present. bInvalidParameter must be acknowledged with bReset.
VAR_IN_OUT
Name : Type Persistent Default Range
rSetpointComfortHeat : REAL; X 21.0
rSetpointPreComfortHeat : REAL; X 19.0
rSetpointEconomyHeat : REAL; X 15.0
rSetpointProtectionHeat : REAL; X 12.0
rSetpointComfortCool : REAL; X 24.0
rSetpointPreComfortCool : REAL; X 28.0
rSetpointEconomyCool : REAL; X 35.0
rSetpointProtectionCool : REAL; X 40.0
rSetpointComfortHeat: Setpoint for the Comfort heating energy level.
rSetpointPreComfortHeat: Setpoint for the PreComfort heating energy level.
rSetpointEconomyHeat: Setpoint for the Economy heating energy level.
rSetpointProtectionHeat: Setpoint for the Protection heating energy level.
rSetpointComfortCool: Setpoint for the Comfort cooling energy level.
rSetpointPreComfortCool: Setpoint for the PreComfort cooling energy level.
rSetpointEconomyCool: Setpoint for the Economy cooling energy level.
rSetpointProtectionCool: Setpoint for the Protection cooling energy level.