Lighting presence operation (LgtPscOp11)

Overview

The application function "Lighting presence operation 11" (LgtPscOp11) controls the response to one or more presence detectors based on the discipline-wide lighting presence mode determined in the room lighting coordination.

Function

Switching on/off value (if no lighting control is available, flag LgtCtlAvl=0).

• Lighting is immediately switched to the on value at ManM3 (Prio 13) in the following cases:
• Case 1:
• The presence detector reports present.
• ManM3 is active and lighting is at off value²⁾ or present priority < ManM3 (< Prio 13).
• The presence detector is allowed to switch on the lights (see LgtPscMod11 in the lighting coordination).
• Case 2:
• Present is active and the presence mode (LgtPscMod) changes to present consideration.
• ManM3 or Default is active and the lighting is at off value²⁾ or the present priority < ManM3.

• The AF calculates the on value based on the presence level (LgtPscLvl), the maintenance factor (MntnFac), the adaptation of illuminance (ImncAda), the lighting operation strategy (LgtOpStrgy), and the value of the reduction factor switch-on (RedFacSwiOn, see also LgtOpStrgy11 in the lighting coordination).
• LgtOpStrgy = Energy efficiency:
  On value = Actual on value based on the presence level, the maintenance factor and the adaptation of illuminance * RedFacSwiOn.
• LgtOpStrgy = Comfort optimization:
  On value = Actual on value based on the presence level, the maintenance factor and the adaptation of illuminance.
• The lighting is switched off to absence level (LgtAscLvl) in the following two cases:
• Absent is reported throughout the switch-off delay LgtDlyOfPscDet.
• Absent is active and the presence mode (LgtPscMod) changes to absent consideration.

Brightness control (if lighting control is available, flag LgtCtlAvl=1).

• Brightness control (AutoM6, Prio 15) is activated immediately under the following conditions:
• The presence detector reports present
• ManM3 is active and the lighting is at off value²⁾ or present priority < ManM3 (< Prio 13)
• Presence detector is allowed to switch on lighting (see LgtPscMod11 in the lighting coordination).
• The lighting is switched off to absence level (LgtAscLvl) if absent is reported throughout the switch-off delay LgtDlyOfPscDet.

The lighting can be switched off by the brightness control when this function is enabled (default configuration). Disable the switch-off function if it is not required. See the brightness control description.

Lighting presence mode (LgtPscMod) defines the presence detector's response. It is received from LgtPscMod11 in RLgtCoo11 via grouping.

• None: Presence detector is ignored.
• Consider present: Presence detector switches the lighting ON only.
• Consider absent: Presence detector switches the lighting OFF only.
• Consider present & absent: Presence detector switches the lighting ON and OFF.

Reset delay by manual mode off
The AF resets the switch-off delay after 5s when lighting is switched to off value²⁾ manually at ManM3 (Prio 13). This is used in public places, e.g. toilets, where the presence detector must immediately switch on the lights as soon as the next person is detected.

To enable this functionality, set the following parameters:

• Set RstDlyManModOff to Yes.
• Set the detector's internal delay to an acceptable number of seconds (configured in the detector's BACnet object properties). This setting must be used with caution: The smaller the value, the higher the bus traffic.

Reaction delay
This function is used when the lighting output is not on the same room automation station as this AF. It ensures that the presence function waits for the lighting state to update.

²⁾ Off value means that the lighting is off or at absence level (LgtAscLvl).

Configuration

Objects

Parameters