Process data words in DALI mode

Process output word (DataOUT)

Bit

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

0

Name

Y

Address bits (A)

S

Command (X)

Key

Bit

Name

Description

15

Y

0bin

Address bits 9 to 14 contain a DALI short address.

1bin

Address bits 9 to 14 contain a DALI group address or a DALI collective call.

14 to 9

Address bits (A)

0bin

DALI short address, DALI group address or DALI collective call

8

Selection bit (S)

0bin

Bits 0 to 7 contain a lamp power value.

1bin

Bits 0 to 7 contain a DALI command.

7 to 0

Command (X)

Lamp power value or DALI command*

*) A list of DALI commands can be found in Chapter DALI commands.

Process data words in DALI mode 1:

Commands received by the DALI devices

Please note that DALI devices can only receive commands once their load side is supplied with power (230 V), since the PIC (single-chip micro-controller) of a DALI device is typically supplied via the load voltage.

Process input word (DataIN)

Bit

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

0

Name

reserved

OK

Parameter

Key

Bit

Name

Description

15 to 9

-

reserved

8

OK

0bin

Bits 0 to 7 do not contain valid data

1bin

Bits 0 to 7 contain the valid response of a DALI device

7 to 0

Parameter

Response of a DALI device