BACnet Interface - Binary Input Object - Occupancy Sensors

Binary Input Object - Occupancy Sensors

To obtain the occupancy state, use the Binary Input objects.

Occupancy Sensor

List of available properties for these objects.

Property Identifier	Property ID	Property Datatype	Conformance Code
Object_Identifier	75	BACnetObjectIdentifier	R
Object_Name	77	CharacterString	R
Object_Type	79	BACnetObjectType	R
Present_Value	85	Enumerated	W
Description	28	CharacterString	R
Status_Flags	111	BACnetStatusFlags	R
Event_State	36	BACnetEventState	R
Reliability	103	BACnetReliability	R
Inactive_Text	46	CharacterString	R
Active_Text	4	CharacterString	R
Occupancy_Hold_Time	563	Unsigned	W
Allowed_Command	904	Enumerated	W
Buttons_States	905	Unsigned32	R
Buttons_Allowed_Command	927	Enumerated	W
Light_Hystereris	564	Unsigned	W
Light_Hystereris_Minimum	565	Unsigned	W
Light_Raw_Value	570	REAL	R
Light_Calibration_Measured_Value	571	REAL	R
Light_Calibration_Sensor_Value	572	REAL	R
Device_Serial_Number	573	OCTET STRING	R

Object_Identifier

The object instance number is represented as TCLL.

• "T" is the type of object as follows, 5 for DALI sensors.

• "C" represents the DALI channel number, 0, 1, 2, or 3.

• "LL" represents for sensor objects, numbers 00-31.

Object_Name

The name of the occupancy sensor.

Object_Type

BINARY_INPUT (3).

Present_Value

The current occupancy state.

Inactive_Text

"Unoccupied".

Active_Text

"Occupied".

Occupancy_Hold_Time

Hold time in seconds for the sensor.

Valid values are between 1 and 2 540 seconds (42.3 minutes) with an interval of 10 seconds.

Allowed_Command

Indicates whether the occupancy state of this object is used or not by the Room Light Control.
At the startup, the value is OFF_ON_ALLOWED.

Name	Value	Description
OFF_ON_DISALLOWED	0	Both Unoccupied and Occupied states are unused.
OFF_ALLOWED	1	Only Unoccupied state is used.
ON_ALLOWED	2	Only Occupied state is used.
OFF_ON_ALLOWED	3	Both Unoccupied and Occupied states are used.

Buttons_States

Indicates the state of the buttons instances of the associated DALI input device. Each button instance state is represented by a bit in this 32-bit unsigned value.

For example, if only the instance 2 is pressed the value is 4.

For button instance configured as Push-button, the bit value toggle each time that the button is short pressed.

For button instance configured as Switch, the bit value is 1 when the button is pressed and 0 when the button is released.

Buttons_Allowed_Command

Indicates whether the button instances of the associated DALI input device can generate commands.
At the startup, the value is OFF_ON_ALLOWED.

Name	Value	Description
OFF_ON_DISALLOWED	0	Both Off and On commands are disabled.
OFF_ALLOWED	1	Only Off commands are enabled.
ON_ALLOWED	2	Only On commands are used.
OFF_ON_ALLOWED	3	Both Off and On commands are enabled.

Off commands are the commands Direct Value with a value of 0, Off and Off / Down. As well as the toggle commands On / Off and Last Level / Off when the command to generate is Off.

On commands are the commands Direct Value with a value greater than 0, Max Level, Max Level / Up, Min Level, Min Level / Down, Recall Scene, Recall Scene / Up and Recall Scene / Down. As well as the toggle commands On / Off and Last Level / Off when the command to generate is not Off.

Light_Hystereris

The Light_Hystereris of the assosiated Analog Input object.

Light_Hystereris_Minimum

The Light_Hystereris_Minimum of the assosiated Analog Input object.

Light_Raw_Value

The Light_Raw_Value of the assosiated Analog Input object.

Light_Calibration_Measured_Value

The Light_Calibration_Measured_Value of the assosiated Analog Input object.

Light_Calibration_Sensor_Value

The Light_Calibration_Sensor_Value of the assosiated Analog Input object.

Device_Serial_Number

The DALI serial number of the input device.