Functions - Installation

Functions

The Desigo Plug and Play Automation application contains functions that are either global or mapped to rooms. The functions include

Operating mode scheduler
Setpoint scheduler
Heating / cooling changeover function according to calendar or manual operation
Primary heating demand
Primary cooling demand
Determine distribution heating and cooling demand
Calculation of effective temperature
Distribution of room unit setpoints to valve actuators
Energy consumption calculations (electrical, heating, and cooling)
Electrical meter tariff calculations

Functions are assigned to disciplines based on domain, such as comfort, heating, cooling or metering.

Some parameters can be adjusted in device detail cards to override global settings temporarily. The effective value follows the principle of “last wins”, which means that a local value remains in effect until another change is made or the update with global settings is made at a switching point or after synchronization, which is done every 12 hours. See Configuration using detail cards.

NOTICE

Function usage

Some functions can only be used with certain devices. This dependency is indicated in the Notes column in the table below.

In the view Commissioning > Functions available functions are listed in the right column. The functions are added to different disciplines: Comfort, Cooling, Heating, Energy management, and Metering. The functions determine the system operating mode and metrics displayed on the dashboard. Selected functions are activated by drag and drop to the respective discipline, and the result is displayed in the column to the right.

The scheduler controls the operating mode and is used to switch operating discipline (between Comfort, Economy and Protection) in a room.

The following functions are available:

Functions - Installation - CXE200

CXE200 Desigo Plug and Play Automation Installation

	Discipline	Description	Notes
Room operating mode scheduler ROpModSched	Comfort	Pointjob scheduler for room operating mode	Fan coil system with Siemens FCU Deploy at most one scheduler per room to set operating mode (Comfort, Economy, or Protection). See Section Room operating mode.
Setpoint scheduler SetpSched	Comfort	Setpoint scheduler for radiator actuator	Wireless solution with WRA Deploy at most one scheduler per room to set demand. See Section Setpoint scheduler.
Determine keylock dtrmnKeyLock	Comfort	Keylock for wireless room actuator	Wireless solution with WRA See Section Keylock function.
Calculate effective room temperature calcTREff	Comfort	Calculate effective room temperature	Temperature exchange between WRS and WRA Calculates effective room temperature from selected devices to determine collective effective room temperature. See Section Temperature function for WRA/WRS.
Forward effective room temperature setpoint user fwdSpTRUserEff	Comfort	Forward effective room temperature setpoint user	Setpoint exchange between WRU and WRA Calculates effective room temperature setpoint from selected devices to determine user setpoint. See Section User setpoint function for WRA/WRU.
Determine display rotation dtrmnDspyRot	Comfort	Determine display rotation	Wireless solution with WRA See Section Display rotation.
Determine RDF primary cooling demand dtrmnCDmdRDF	Cooling	Determine RDF primary cooling demand	Fan coil system Collects input from thermostats to control primary plant. See Section RDF - Primary heating and cooling demand.
Determine distribution cooling demand dtrmnCDmdDstr	Cooling	Determine distribution cooling demand	Water-based cooling distribution Collects input from selected room locations to control distribution pumps with a relay (On or Off). See Section Determine distribution heating and cooling demand.
Determine distribution cooling demand proportional dtrmnCDmdDstrProp	Cooling	Determine distribution cooling demand proportional	Water-based cooling distribution Collects input from selected room locations to control distribution pumps with a 0-10V signal. See Section Determine distribution heating and cooling demand.
Calculate cooling energy total calcCEngyTot	Energy management	Calculate cooling energy total	Cooling meter (solution independent) Used by dashboard, see Section Dashboard.
Calculate electrical energy total calcElEngyTot	Energy management	Calculate electrical energy total	Electrical meter (solution independent) Used by dashboard, see Section Dashboard.
Calculate heating energy total calcHEngyTot	Energy management	Calculate heating energy total	Heat meter (solution independent) Used by dashboard, see Section Dashboard.
Determine RDF primary heating demand dtrmnHDmdRDF	Heating	Determine RDF primary heating demand	Fan coil system Collects input from thermostats to control primary plant. See Section RDF - Primary heating and cooling demand.
Determine distribution heating demand dtrmnHDmdDstr	Heating	Determine distribution heating demand	Water-based heating distribution Collects input from selected room locations to control distribution pumps with a relay (On or Off). See Section Determine distribution heating and cooling demand.
Determine distribution heating demand proportional dtrmnHDmdDstrProp	Heating	Determine distribution heating demand proportional	Water-based heating distribution Collects input from selected room locations to control distribution pumps with a 0-10V signal. See Section Determine distribution heating and cooling demand.
Determine heating/cooling changeover condition dtrmnHCChovrCnd	Heating	Determine heating/cooling changeover condition	Fan coil system Changeover for 2-pipe fan coil units. See Section Heating and cooling changeover function.
Determine radiator season mode dtrmnRadSsnMod	Heating	Determine RDF primary heating demand	Wireless solution with WRA See Section Season mode.
Calculate electrical meter tariff calcElMtrTrf	Metering	Calculate electrical meter tariff	Electrical meter (solution independent) Required for commissioning of electrical meter PAC2200 only. See Section Electrical meter tariff.