Shading presence mode (ShdPscMod11)

Overview

The application function "Shading presence mode 11" (ShdPscMod11) controls blinds response to a presence detector based on room operating mode.

Function

Blind's response to a presence detector is considered room-wide for energy aspects and individually per blinds actuator for comfort aspects.

Energy aspects (requires AF RHvacCooxx):
Collaboration with RHvacCooxx allows running the operating strategy "Presence dependent" in ShdOpStrgy11. Presence dependent means that glare protection is performed when someone is in the room, and energy efficiency is performed when no one is in the room. An adjustable off-delay (ShdDlyOfPscDet) and a fixed on-delay (3 minutes) prevent frequent changes.

Comfort aspects:
Room-wide, Shading presence mode defines a balance between maximum automatic functionality and minimum number of automatic blinds movements. For each shading zone (AF Shd11) you can configure, which presence detector(s) and which delay times apply to the blinds.

Shading presence mode (ShdPscMod) can be configured for each room operating mode.
The configuration supports the following values:

None: The presence detector is ignored
Consider present: The AF responds to a change from absent to present. The response depends on the configuration of the comfort trigger in ShdCoo11:

One comfort trigger configuration is "None" or "Hold": The blinds are held in the actual position until moved manually.
Both comfort trigger configurations are "Automatic": The blinds are set to automatic.

Consider absent: The AF responds to a change from present to absent. The blinds are set to automatic.
Consider present & absent: The AF responds to a change from absent to present and vice-versa.

Output
The response (ShdPscMod) is distributed via grouping to shading applications (Shd11) in the room segments.

A BACnet client can also operate ShdPscMod.

Usage

Shading operating modes
ShdOpMod	Description	Typical usage
None	The state of the presence detectors does not influence shading.	No automatic function available.
Consider present	A person enters the room: Change from absent to present. Freeze the current blinds position (automatic control inactive) in order to prevent distracting movements while someone is in the room.	Strictly user oriented. The user is not distracted by movements of the blinds or awnings, even when he leaves the room. Used for example for residential rooms during day time.
Consider absent	No more persons in the room: Change from present to absent. Automatic control is activated. Typically this is done only after a delay. The blinds have the same position if someone leaves the room briefly and returns.	Automatic oriented. Automatic is active until the user manually moves the blinds. Automatic is reactivated, when the user leaves the room. Example: open space office or meeting room
Consider present & absent	Both functions described above.	User oriented. Users are not distracted by movements as long as they are in the room. Automatic is activated when the user leaves the room. Example: individual office or meeting room.

Functional chain

If...			Then...
ShdPscMod	OpCmdEefAuto / OpCmdEefMan / OpCmdCmfAuto / OpCmdCmfMan	Presence detector	ShdPscMod
(configured here in ShdPscMod11, based on ROpMod)	(configured in RShdCoo11, based on CmfCndTrg / EefCndTrg)	(in RSegm)	(owned by ShdPscOp11)
None	Irrelevant	Irrelevant	No influence
Consider present	None	Absent → Present	Hold
	None	Present → Absent	No influence
	Automatic	Absent → Present	Automatic
	Automatic	Present → Absent	No influence
	Hold	Absent → Present	Hold
	Hold	Present → Absent	No influence
Consider absent	Irrelevant	Absent → Present	No influence
Consider absent	Irrelevant	Present → Absent	Automatic
Consider present & absent	None	Absent → Present	Hold
	None	Present → Absent	Automatic
	Automatic	Absent → Present	Automatic
	Automatic	Present → Absent	Automatic
	Hold	Absent → Present	Hold
	Hold	Present → Absent	Automatic

Configuration

Parameters

Description	Parameter	Default value
Presence mode for comfort 1:None 2:Consider present 3:Consider absent 4:Consider present & absent	PscModCmf	4:Consider present & absent
Presence mode for pre-comfort Enumeration see PscModCmf	PscModPcf	4:Consider present & absent
Presence mode for economy Enumeration see PscModCmf	PscModEco	1:None
Presence mode for protection Enumeration see PscModCmf	PscModPrt	1:None
Shading switch-off delay presence detector ▶ This delay is added to the detector's internal delay which is usually 1...2 minutes.	ShdDlyOfPscDet	1800 [s]

Interface

Interface	Description	Type	Ref.	Owned by
RPscDet	Room presence detection	BCalcVal	◉	RHvacCooXX
ShdPscMod	Shading presence mode 1:None 2:Consider present: Automatic 3:Consider present: Hold 4:Consider absent: Automatic 5:Consider present: Automatic / Consider absent: Automatic 6:Consider present: Hold / Consider absent: Automatic	MPrcVal	●	-
RCtl	Room control	GrpMaster	◉	Room
RShdDlyOffPsc	Room shading switch-off delay presence	UCnfVal	●	-

Engineering and commissioning

The AF is required if a presence detector is in the room and used for shading.
For configuration see examples in ShdCoo11.
Note that the blinds output is also influenced by the Comfort trigger, the energy efficiency trigger (see ShdCoo11), and the automatic strategy (ShdOpStrgy11).