BACnet Interface - Analog Input Object - Feedback of Lamp, Group, and Channel

Analog Input Object - Feedback of Lamp, Group, and Channel

To obtain the intensity of the lamps, use the Analog Input objects.

Lamp, Group and Channel

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	REAL	W
Description	28	CharacterString	R
Device_Type	31	CharacterString	R
Status_Flags	111	BACnetStatusFlags	R
Event_State	36	BACnetEventState	R
Reliability	103	BACnetReliability	R
Out_Of_Service	81	BOOLEAN	W
Units	117	BACnetEngineeringUnits	R
Min_Pres_Value	69	REAL	R
Max_Pres_Value	65	REAL	W
COV_Increment	22	REAL	W
Nominal_Power	518	REAL	W
Channel_Battery_Failure	532	BIT STRING	R
Channel_Function_Test_Failure	533	BIT STRING	R
Channel_Duration_Test_Failure	534	BIT STRING	R
Last_Level	906	REAL	R
Device_Type_Supported	925	BIT STRING	R
Energy_Usage_Accumulated	926	REAL	W
Emergency_Battery_Failure	1000	BOOLEAN	R
Emergency_Function_Test_Failure	1001	BOOLEAN	R
Emergency_Duration_Test_Failure	1002	BOOLEAN	R
Colour_Type	8000	Enumerated	R
Colour_XYC_X	8010	REAL	R
Colour_XYC_Y	8011	REAL	R
Colour_TC_TC	8020	REAL	R
Colour_PN_P0	8030	REAL	R
Colour_PN_P1	8031	REAL	R
Colour_PN_P2	8032	REAL	R
Colour_PN_P3	8033	REAL	R
Colour_PN_P4	8034	REAL	R
Colour_PN_P5	8035	REAL	R
Colour_RGBWAF_RED	8040	REAL	R
Colour_RGBWAF_GREEN	8041	REAL	R
Colour_RGBWAF_BLUE	8042	REAL	R
Colour_RGBWAF_WHITE	8043	REAL	R
Colour_RGBWAF_AMBER	8044	REAL	R
Colour_RGBWAF_FREECOLOUR	8045	REAL	R

Object_Identifier

The object instance number is the same as the associated Analog Output object and is also represented as TCLL.

"T" is the type of object as follows, 0 for DALI Lamps, 1 for DALI groups and 2 for DALI channels.
"C" represents the DALI channel number, 0, 1, 2, or 3.
"LL" represents for lamp objects, numbers 00-63, for group objects, numbers 00-15 and for channel objects, number 00.

Object_Name

The Object_Name of the associated Analog Output object of the DALI lamp, group or channel ending with "Feedback".

Object_Type

ANALOG_INPUT (0).

Present_Value

The current light intensity as a percentage for the DALI lamps, groups and channels.

Description

The Description of the associated Analog Output object of the DALI lamp, group or channel ending with "Feedback".

Device_Type

A text description of the physical DALI device connected to the analog output, it is the DALI device type (ex. "Fluorescent lamps", "Conversion from digital signal into d.c. voltage", "LED modules", "Switching function"). For group objects, it is "DALI group". For channel objects, it is "DALI channel".

Status_Flags

This property indicates the general "reliability" of an analog input object.

Reliability

This property indicates whether the operation of the DALI output is reliable. The values are as follows:

NO_FAULT_DETECTED (0) - No fault has been detected.
NO_SENSOR (1) - No physical device is connected to the input object.
COMMUNICATION_FAILURE (12) - DALI device is offline.
UNRELIABLE_OTHER (7) - A DALI error has been reported by the DALI lamp.

Out_Of_Service

It indicates whether the physical device that the object represents is in service.

Units

The unit for the Present_Value is percent.

Min_Pres_Value

The minimum value is always zero (0). It represents the lowest value for the property Present_Value.

Max_Pres_Value

The maximum value is always one hundred (100). It represents the highest value for the property Present_Value.

COV_Increment

This property specifies the minimum change of the Present_Value that issues a COVNotification.

Nominal_Power

It represents the nominal power of the DALI lamp. It is writable for lamps, groups and channels. For groups and channels, it always read as NaN.

Channel_Battery_Failure

Only available for channel objects, this property indicates whether a "Self-contained emergency lighting (device type 1)" is reporting a battery failure. Each 64 lamps of the channel are one bit of the 64-bit BIT STRING. When a battery failure is reported by a lamp, its associated bit is set.

Channel_Function_Test_Failure

Only available for channel objects, this property indicates whether a "Self-contained emergency lighting (device type 1)" is reporting a function test failure. Each 64 lamps of the channel are one bit of the 64-bit BIT STRING. When a function test failure is reported by a lamp, its associated bit is set.

Channel_Duration_Test_Failure

Only available for channel objects, this property indicates whether a "Self-contained emergency lighting (device type 1)" is reporting a duration test failure. Each 64 lamps of the channel are one bit of the 64-bit BIT STRING. When a duration test failure is reported by a lamp, its associated bit is set.

Last_Level

It represents the last level value in percentages.

Device_Type_Supported

Only available for lamp objects, this property indicates the supported DALI types for the physical DALI device connected to the object.

Bit	Name
0	Fluorescent
1	Self contained emergency
2	Discharge HID
3	Low voltage halogen
4	Incandescent lamp
5	Conversion to DC voltage
6	LED
7	Switching relay
8	Colour

Energy_Usage_Accumulated

It represents the accumulated energy consumption in watt-hours for the DALI lamp. This value is the result of a calculation based on the Nominal_Power property. It is writable for lamps, groups and channels. For groups and channels, it always read as NaN.

Emergency_Battery_Failure

Only available for lamp objects, this property indicates whether a "Self-contained emergency lighting (device type 1)" is reporting a battery failure. When a battery failure is reported by the lamp, the value is true.

Emergency_Function_Test_Failure

Only available for lamp objects, this property indicates whether a "Self-contained emergency lighting (device type 1)" is reporting a function test failure. When a function test failure is reported by the lamp, the value is true.

Emergency_Duration_Test_Failure

Only available for lamp objects, this property indicates whether a "Self-contained emergency lighting (device type 1)" is reporting a duration test failure. When a duration test failure is reported by the lamp, the value is true.

Colour_Type

The current colour control type.

The supported colour types are as follows.

Name	Value
xy-coordinate	1
temperature Tc	2
primary N	3
RGBWAF	4

Colour_XYC_X

The current x-coordinate value of DALI Type 8 (DT8) lamps, whose colour control is xy-Coordinate.

The valid values are from 0 to 65534 and a value of NaN represents the DALI "MASK" value.

The unit of the value is 1 / 65536. Therefore the maximum corresponding x-coordinate is 0.99997.

Colour_XYC_Y

The current y-coordinate value of DALI Type 8 (DT8) lamps, whose colour control is xy-Coordinate.

The valid values are from 0 to 65534 and a value of NaN represents the DALI "MASK" value.

The unit of the value is 1 / 65536. Therefore the maximum corresponding y-coordinate is 0.99997.

Colour_TC_TC

The current colour temperature of DALI Type 8 (DT8) lamps, whose colour control is colour temperature Tc.

The valid values are from 1 to 65534 and a value of NaN represents the DALI "MASK" value.

The unit of the value is 1 Mirek. Therefore the minimum value is 1 Mirek (1000000 Kelvin) and the maximum value is 65534 Mirek (15.26 Kelvin).

Mirek = 1 000 000 / [Colour Temperature in Kelvin]

Kelvin = 1 000 000 / [value of Mirek]

Colour_PN_P0 to Colour_PN_P5

The current primary N value of DALI Type 8 (DT8) lamps, whose colour control is primary N.

The valid values are from 0 to 65534 and a value of NaN represents the DALI "MASK" value.

The unit of the value is 1 / 65536. Therefore the maximum corresponding primary value is 0.99997.