Analog Output Object - Lamp Command

The lamp command Analog Output objects command the five lamps. These objects expose proprietary properties used to configure the DALI control gear and the lamp behaviour. All present values are expressed as a percentage from 0 to 100.

Objects

Type	Instance	Name	Minimum	Maximum	Unit	Physical signal
AO	2	LAMP 1 CMD	0	100	percent	Lamp 1
AO	3	LAMP 2 CMD	0	100	percent	Lamp 2
AO	4	LAMP 3 CMD	0	100	percent	Lamp 3
AO	5	LAMP 4 CMD	0	100	percent	Lamp 4
AO	6	LAMP 5 CMD	0	100	percent	Lamp 5

Properties

The lamp command objects expose the standard analog output properties plus proprietary properties. Properties with an identifier of 512 or higher are proprietary. The dimming-level proprietary properties are expressed as a percentage from 0 to 100 after conversion from the raw DALI arc power level.

Property Identifier	Property ID	Property Datatype	Writable / Read-only
Object_Identifier	75	BACnetObjectIdentifier	R
Object_Name	77	CharacterString	W
Object_Type	79	BACnetObjectType	R
Present_Value	85	REAL	W (commandable)
Status_Flags	111	BACnetStatusFlags	R
Event_State	36	BACnetEventState	R
Out_Of_Service	81	BOOLEAN	W
Units	117	BACnetEngineeringUnits	R
Priority_Array	87	BACnetPriorityArray	R
Relinquish_Default	104	REAL	R
Property_List	371	BACnetARRAY of Unsigned	R
Description	28	CharacterString	R
Max_Pres_Value	65	REAL	R
Active_Scene	700	Unsigned	R
Power_On_Level	1009	REAL	W
System_Failure_Level	1010	REAL	W
Minimum_Level	1011	REAL	W
Maximum_Level	1012	REAL	W
Type_5_Failure_Status	1006	Unsigned	R
Type_5_Converter_Status	1007	Unsigned	R
Scene_0	1023	REAL	W
Scene_1	1024	REAL	W
Scene_2	1025	REAL	W
Scene_3	1026	REAL	W
Scene_4	1027	REAL	W
Scene_5	1028	REAL	W
Scene_6	1029	REAL	W
Scene_7	1030	REAL	W
Scene_8	1031	REAL	W
Scene_9	1032	REAL	W
Scene_10	1033	REAL	W
Scene_11	1034	REAL	W
Scene_12	1035	REAL	W
Scene_13	1036	REAL	W
Scene_14	1037	REAL	W
Scene_15	1038	REAL	W
Operating_Mode	1040	Unsigned	W
Type_5_Dimming_Curve	1041	Unsigned	W
Up_Switch_On_Threshold	1043	REAL	W
Up_Switch_Off_Threshold	1044	REAL	W
Down_Switch_On_Threshold	1045	REAL	W
Down_Switch_Off_Threshold	1046	REAL	W
Phys_Min_Level	1142	REAL	R
Type_5_Converter_Features	1149	Unsigned	R
Fade_Mode	2001	Unsigned	W
Run_Hour	2002	Unsigned	W
Occupancy_Delay_Off	2003	Unsigned	W
Default_Fade_Time	2374	Unsigned	W

Proprietary Properties

Scene

Active_Scene (700)

Reports the scene number currently applied to the lamp. This property is read-only.

DALI dimming levels

These properties map to the DALI dimming registers of the controller, which emulates a DALI control gear to drive its 0-10V and relay outputs. Each value is read and written as a percentage from 0 to 100.

Power_On_Level (1009)

Arc power level the controller applies when it powers on.

System_Failure_Level (1010)

Arc power level the controller applies when a bus failure is detected.

Minimum_Level (1011)

Lowest dimming level the controller is allowed to reach.

Maximum_Level (1012)

Highest dimming level the controller is allowed to reach.

Phys_Min_Level (1142)

Physical minimum level supported by the controller hardware. Read-only.

DALI scene levels

Scene_0 to Scene_15 (1023 to 1038)

The sixteen DALI scene levels stored in the controller. Each property holds the dimming level, as a percentage, applied when the matching DALI scene is recalled.

DALI Device Operating Mode

Operating_Mode (1040)

Selects the DALI device type emulated by the lamp. The value determines which of the type-specific sections below applies. The values are as follows:

• 0 (0x00) - DC converter (Device Type 5).
• 128 (0x80) - Switching function (Device Type 7).
• 129 (0x81) - Colour temperature Tc (Device Type 8).

DALI switching thresholds (Device Type 7)

These properties configure the switching behaviour of a Device Type 7 (switching function) control gear. Each threshold is expressed as a percentage.

Up_Switch_On_Threshold (1043)

Level at or above which the up-switch turns on.

Up_Switch_Off_Threshold (1044)

Level at or below which the up-switch turns off.

Down_Switch_On_Threshold (1045)

Level at or above which the down-switch turns on.

Down_Switch_Off_Threshold (1046)

Level at or below which the down-switch turns off.

DALI DC converter (Device Type 5)

These properties configure and report a Device Type 5 (DC voltage) converter.

Type_5_Dimming_Curve (1041)

Selects the dimming curve applied by the converter. The values are as follows:

• 0 - logarithmic.
• 1 - linear.

Type_5_Failure_Status (1006)

Converter failure status reported by the controller. Read-only.

Type_5_Converter_Status (1007)

Converter status bitmask. Read-only.

Bit	Description
0	0-10V output active
1	Pull-up active
2	Non-logarithmic dimming curve active

Type_5_Converter_Features (1149)

Converter feature bitmask reported by the controller. Read-only.

Bit	Description
0	0-10V output selectable
1	Pull-up selectable
2	Output fault detection supported
3	Mains relay present
4	Output level query supported
5	Non-logarithmic dimming curve supported

Configuration

These properties configure how the lamp reacts to commands and occupancy.

Fade_Mode (2001)

Dim mode applied to BACnet writes on this lamp. The values are as follows:

• 0 - no fade, the level changes immediately.
• 1 - fade, the level changes using the configured fade time.

Run_Hour (2002)

Accumulated running hours, in hours, of the lamp.

Occupancy_Delay_Off (2003)

Delay, in seconds, before the lamp turns off after the space becomes unoccupied.

Default_Fade_Time (2374)

Default DALI fade time, in milliseconds, applied to level changes. A value of 0 falls back to the standard DALI fade time.