User`s manual

Applilet EZ for HCD Controller
APPENDIX D DALI MODE COMMUNICATION DATA
R20UT0435EJ1200 Rev. 12.00 54
Jul 31, 2014
D.2 Transmission/Reception Timing Rules
<1> Timing in the frame
1 bit width in DALI is 833.3
 s 10% for both Forward and Backward frames.
Figure D-4. Timing in the Frame
Data bit
833.3 μs
Data bit
833.3 μs
Data bit
833.3 μs
Stop bits
Note
1666.67 μs
Start bit
833.3 μs
Note Because there are two stop bits, their timing is 1666.67  s.
<2> Timing among frames
With DALI, the following timing must be controlled in frame units.
 Forward frame width: 15.83 ms 10%
 Backward frame width: 9.17 ms 10%
 Communication interval between one Forward frame and the Backward frame: 2.92 to 9.17 ms
 Communication interval between one Forward frame and the next Forward frame: 9.17 ms min.
 Communication interval between one Backward frame and the next Forward frame: 9.17 ms min.
Figure D-5. Timing among frames
15.83 ms 9.17 ms
Forward start - Backward start
9.17 ms
min.
9.17 ms
min.
2.92 to
9.17 ms
Forward
frame
Forward
frame
Forward
frame
Backward
frame