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.
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 |