Variables

Name

Reset value

Scope

Size

Comments

dimmingCurve

E_DALIDimmingCurve.Standard

E_DALIDimmingCurve.Standard,

E_DALIDimmingCurve.Linear

1 byte

 

dimmerStatus

no change, except bit 4 is set to FALSE

 

16#00…16#FF

1 byte

read only

dimmerFeatures

No change

16#00_00_00…16#FF_FF_FF

3 bytes

read only

failureStatus

No change

16#00_00…16#FF_FF

2 byte

read only

dimmerTemperature

No change

0…255

1 byte

read only

rmsSupplyVoltage

No change

0…255

1 byte

read only

supplyFrequency

No change

0…255

1 byte

read only

rmsLoadVoltage

No change

0…255

1 byte

read only

rmsLoadCurrent

No change

0…255

1 byte

read only

realLoadPower

No change

0…6535

2 byte

read only

loadRating

No change

0…255

1 byte

read only

dimmingCurve

The variable specifies the type of dimming curve.

The variable can be written with the function block FB_DALI205SelectDimmingCurve and read with the function block FB_DALI205QueryDimmingCurve.

E_DALIDimmingCurve

Description

Standard

Standard dimming curve

Linear

Linear dimming curve

dimmerStatus

The variable contains information about the current operation mode of the DALI control gear.

The variable can be read with the function block FB_DALI205QueryDimmerStatus.

Bit

Description

0

Leading edge phase control active

1

Trailing edge phase control active

2

Reserve

3

Reserve

4

Linear dimming curve active

5

Reserve

6

Reserve

7

Reserve

dimmerFeatures

The variable contains information about the implemented properties of the DALI control gear.

The variable can be read with the function block FB_DALI205QueryFeatures.

Bit

Description

0

Load overcurrent shutdown can be queried

1

Idle detection (no load) can be queried

2

Reserve

3

Reserve

4

Reserve

5

Thermal shutdown can be queried

6

Reduction of the output level due to thermal overload can be queried

7

Reserve

8

Operating temperature can be queried

9

Supply voltage can be queried

10

Frequency of the supply voltage can be queried

11

Load voltage can be queried

12

Load current can be queried

13

Active power of the load can be queried

14

Maximum permissible load current can be queried

15

Reduction of the output level due to load overcurrent can be queried

16

Supported dimming methods (see table below)

17

Supported dimming methods (see table below)

18

Reserve

19

Linear dimming curve can be selected

20

Reserve

21

Reserve

22

Reserve

23

A load that is not compatible for the DALI control gear can be queried

Bit 16 and bit 17 define the supported dimming methods:

Bit 17

Bit 16

Meaning

0

0

Leading edge phase control and trailing edge phase control

0

1

Leading edge phase control

1

0

Trailing edge phase control

1

1

Sine curve

failureStatus

The variable contains information about the failure status.

The variable can be read with the function block FB_DALI205QueryFailureStatus.

Bit

Description

0

Shutdown due to load overcurrent

1

Idle (no load) detected

2

Reserve

3

Reserve

4

Reserve

5

Thermal shutdown

6

Thermal overload with output level reduction

7

Reserve

8

Shutdown because the load is not suitable for the selected dimming method.

9

Limit violation supply voltage

10

Limit violation frequency of the supply voltage

11

Limit violation load voltage

12

Reduction of the output level due to load overcurrent

13

Reserve

14

Reserve

15

Reserve

dimmerTemperature

The variable contains the operating temperature.

The value is given in steps of 1 °C. The permissible value range is 0 (-40 °C) to 254 (214 °C). If the value 255 (MASK) is returned, the operating temperature is unknown.

The variable can be read with the function block FB_DALI205QueryDimmerTemperature.

Bit 8 of dimmerFeatures can be used to query whether reading of the operating temperature is supported.

rmsSupplyVoltage

The variable contains the root mean square of the supply voltage.

The value is given in steps of 2 V. The permissible value range is 0 (0 V) to 254 (508 V). If the value 255 (MASK) is returned, the supply voltage is unknown.

The variable can be read with the function block FB_DALI205QueryRMSSupplyVoltage.

Bit 9 of dimmerFeatures can be used to query whether reading of the supply voltage is supported.

supplyFrequency

The variable contains the current frequency of the supply voltage.

The value is given in steps of 0.5 Hz. The permissible value range is 0 (0 Hz) to 254 (127 Hz). If the value 255 (MASK) is returned, the frequency is unknown.

The variable can be read with the function block FB_DALI205QuerySupplyFrequency.

Bit 10 of dimmerFeatures can be used to query whether reading of the frequency is supported.

rmsLoadVoltage

The variable contains the root mean square of the load voltage.

The value is given in steps of 2 V. The permissible value range is 0 (0 V) to 254 (508 V). If the value 255 (MASK) is returned, the load voltage is unknown.

The variable can be read with the function block FB_DALI205QueryRMSLoadVoltage.

Bit 11 of dimmerFeatures can be used to query whether reading of the load voltage is supported.

rmsLoadCurrent

The variable contains the root mean square of the load current in relation to the maximum load current (see loadRating).

The value is given in steps of 0.5 %. The permissible value range is 0 (0 %) to 254 (127 %). If the value 255 (MASK) is returned, the load current is unknown.

The variable can be read with the function block FB_DALI205QueryRMSLoadCurrent.

Bit 12 of dimmerFeatures can be used to query whether reading of the load current is supported.

realLoadPower

The variable contains the active power of the load.

The value is given in steps of 0.25 W. The permissible value range is 0 (0 W) to 65534 (16383.5 W). If the value 65535 (MASK) is returned, the active power is unknown.

The variable can be read with the function block FB_DALI205QueryRealLoadPower.

Bit 13 of dimmerFeatures can be used to query whether reading of the active power is supported.

loadRating

The variable contains the maximum permissible root mean square of the load current.

The value is given in steps of 150 mA. The permissible value range is 0 (0 A) to 254 (38.1 A). If the value 255 (MASK) is returned, the maximum permissible load current is unknown.

The variable can be read with the function block FB_DALI205QueryRealLoadRating.

Bit 14 of dimmerFeatures can be used to query whether reading of the maximum permissible load current is supported.