The Presence block combines devices and logic that indicate presence in a room. Loxone sensors such as Touch devices, Door and Window Contacts, and Motion and Presence Sensors are supported.

The desired devices for presence detection can be assigned in the block settings. Additional sensors or logic can be connected via the block inputs.

Every button click on a Loxone Touch activates or extends the presence, as well as detected motion and every change of state of window contacts.

The block also supports the presence detection via the Loxone App.

Presence overrun times are synchronized for supported devices. After the last presence, the presence output for Presence Sensors remains ON for the duration set in parameter (Pet).

Table of Contents


Abbreviation Summary Description Value Range
Act Activate Activates presence on rising edge.
On falling edge, the presence extend time (Pet) starts.
Continuous ON and each falling edge extends the presence.
When using the Desktop App for Presence detection, the App sends a (Act) impulse every (Pet)/2 seconds.
Ext Extend As long as the input is active, already active presence is extended.
On falling edge, the presence extend time (Pet) starts.
AE Activate / Extend Each change at the input activates or extends the presence. 0/1
Off Off Pulse: Outputs are reset / switched off.
On: Block is locked.
Dominating input.
The name of the connected sensor is used in the user interface.


Abbreviation Summary Description Unit Value Range
Pc Presence combined Combined presence output.
Can be used on all presence and motion inputs of other function blocks.
P Presence - 0/1
Pon Pulse on presence start - 0/1
Poff Pulse on presence end - 0/1
Pd Current presence duration Duration of the current presence period. s
Warn Switch-off warning Warning pulse before end of presence. - 0/1
AC API Connector Intelligent API based connector.
API Commands
- -


Abbreviation Summary Description Unit Value Range Default Value
Pet Presence extend time Starts with the falling edge of input (Act) and input (Ext) and extends presence by set time.
Loxone presence sensors adopt this extend time. The device and the block prolong presence for (Pet) seconds after the last presence was detected by the device.
s 2...∞ 900
Tw Switch-off warning time Time of the switch-off warning before the end of presence. s 2...∞ 15


Summary Description Value Range Default Value
Number of Entries Maximum number of saved messages. 1...50 50
Configuration Configuration of the Inputs and Outputs Used. - -

Programming example

The Presence block is used to combine multiple Presence or Motion Sensors and other devices and to use them together to detect presence.
A window that lists all compatible devices can be found in the settings, or by double-clicking on the block:

All devices that are to be used for presence detection in this room are selected here.

Other objects or additional logic can be used for presence detection via the block inputs.
E.g. pushbuttons, motion detectors, sensors, or other devices that are operated or triggered when a room is occupied.
The presence information is then transferred from the (Pc) output to the (P) input of a function block, e.g. the Lighting Controller:

Combined presence output

The combined presence output is similar to the T5 and contains a range of information in the form of a bitmask:

Bit 0 active: Presence active
Bit 1: Motion active
Bit 2: Switch-off warning

Example for analogue values:

0: no presence
1: Presence active
2: Motion active
3: Presence + Motion
5: Presence + switch-off warning

This output can be used on all presence and motion sensor inputs of other blocks

Presence Detection via the Desktop App

On a computer running Windows, macOS, or Linux, the Loxone App enables presence detection.
When you work on your computer, the app detects your presence and transmits it to the block.

To activate the presence detection, first create a Presence block for a room in Loxone Config and save the program in the Miniserver.
Then enable Presence Detection in the App's settings menu.
Here you can select which room is to be used for presence detection:

Selects the room in which the computer is located.
Each room that is to be used with this function requires a Presence block.
This allows you to change the room being used, e.g. if a notebook is used in different rooms.

You can find and change the room being used by clicking on the App icon in the taskbar or menu bar of your computer: