[CenSsnCmp21] Central seasonal compensation 21, summer/winter compensation, with central outside air temperature

Program block, name / node subtype: [CenSsnCmp21] Central seasonal compensation 21, summer/winter compensation, with central outside air temperature

Library hierarchy: Coordination

Family: CenSsnCmp

Project tree	Diagram

Configurator

Program blocks are stored in the library without I/Os. Use the auto-create and auto-connect functions to create I/Os and/or to connect them to the interface blocks, e.g., R_A, CMD_B. Alternatively, take the I/Os from the folder containing the predefined I/Os in the library and/or from the plant and connect them to the interface blocks.

Function

CenSsnCmp21 adjusts the room setpoints for comfort based on the characteristic curve and depending on the outside air temperature. It uses a group mechanism.

The most important functions in the program block are:

Calculation and distribution of outside temperature, depending on the compensated cooling setpoint for comfort based on the characteristic curve
Calculation and distribution of outside temperature, depending on the compensated heating setpoint for comfort based on the characteristic curve

Mandatory elements

Name	Description	Type	Alarm / Notification class	Trend / Type
SpCCmfCmp	Compensated cooling setpoint for comfort	ACalcVal: Analog calculated value	N/A	N/A
TOaLoC	Outside air temperature low for cooling	ACnfVal: Analog configuration value	N/A	N/A
SpLoCCmf	Setpoint cooling low for comfort	ACnfVal: Analog configuration value	N/A	N/A
TOaHiC	Outside air temperature high for cooling	ACnfVal: Analog configuration value	N/A	N/A
SpHiCCmf	Setpoint cooling high for comfort	ACnfVal: Analog configuration value	N/A	N/A
SpHCmfCmp	Compensated heating setpoint for comfort	ACalcVal: Analog calculated value	N/A	N/A
TOaLoH	Outside air temperature low for heating	ACnfVal: Analog configuration value	N/A	N/A
SpLoHCmf	Setpoint heating low for comfort	ACnfVal: Analog configuration value	N/A	N/A
TOaHiH	Outside air temperature high for heating	ACnfVal: Analog configuration value	N/A	N/A
SpHiHCmf	Setpoint heating high for comfort	ACnfVal: Analog configuration value	N/A	N/A
CenSsnCmpMngr	Manager for central seasonal compensation	GrpMaster: Group manager	N/A	N/A

See also

Further options

Description
Group command for subordinate central functions
Group command for subordinate room controllers
Central manual operation at priority 13 Elements that belong to this option: Central manual operation (Prio 13) \| BCnfVal: Binary configuration value Cooling setpoint for comfort (Prio 13) \| ACnfVal: Analog configuration value Heating setpoint for comfort (Prio 13) \| ACnfVal: Analog configuration value
Central manual operation at priority 8 Elements that belong to this option: Central manual operation (Prio 8) \| BCnfVal: Binary configuration value Cooling setpoint for comfort (Prio 8) \| ACnfVal: Analog configuration value Heating setpoint for comfort (Prio 8) \| ACnfVal: Analog configuration value

Further information

CenSsnCmp21 evaluates the outside air temperature and calculates the Comfort temperature setpoints for heating (SpHCmfCmp) and cooling (SpCCmfCmp), and distributes the setpoint values to the group members.

Key

Sp	Setpoint
TOaLoC	Outside air temperature low for cooling
TOaHiC	Outside air temperature high for cooling
SpHiCCmf	Setpoint cooling high for comfort
SpLoCCmf	Setpoint cooling low for comfort
SpHiHCmf	Setpoint heating high for comfort
SpLoHCmf	Setpoint heating low for comfort
TOaLoH	Outside air temperature low for heating
TOaHiH	Outside air temperature high for heating
TOa	Outside air temperature

The following diagram provides an overview of the options Group command for subordinate central functions (GrpCmdSbFnct) and Group command for subordinate room controllers (GrpCmdSbRCtr):

It is unlikely to have both options in parallel. There are two possible topologies:

Cascading of the central functions is necessary.	Cascading of the central functions is not necessary.