Table of Contents
Advertisement
5
Access from the user program
5.1
Process image
In the process image, the KL6811 is represented with 3 bytes of input and output data. These are organized
as follows:
Byte offset (without word
alignment*)
0
1
*) Word alignment: The Bus Coupler places values on even byte addresses
Process data words in DALI mode
Process output word (DataOUT)
Bit
15
14
Name
Y
Address bits (A)
Legend
Bit
Name
15
Y
14 to 9 Address bits (A) 0
8
Selection bit (S) 0
7 to 0
Command (X)
*) A list of DALI commands can be found in Chapter DALI commands [} 53].
Commands received by the DALI slaves
Please note that DALI slaves can only receive commands once their load side is supplied with
power (230 V), since the PIC (single-chip micro-controller) of a DALI slave is typically supplied via
the load voltage.
Process input word (DataIN)
Bit
15
14
Name
reserved
Legend
Bit
Name
15 to 9 -
8
OK
7 to 0
Parameter
KL6811
Byte offset (with word
alignment*)
0
2
13
12
11
Description
0
Address bits 9 to 14 contain a DALI short address.
bin
1
Address bits 9 to 14 contain a DALI group address or a DALI collective
bin
call.
DALI short address, DALI group address or DALI collective call
bin
Bits 0 to 7 contain a lamp power value.
bin
1
Bits 0 to 7 contain a DALI command.
bin
Lamp power value or DALI command*
13
12
11
Description
reserved
0
Bits 0 to 7 do not contain valid data
bin
1
Bits 0 to 7 contain the valid response of a DALI slave
bin
Response of a DALI slave
Version: 2.0.0
Format
Input data
Byte
Status byte (SB) Control byte (CB)
Word
DataIN
10 9
8
7
6
S
Command (X)
10 9
8
7
6
OK
Parameter
Access from the user program
Output data
DataOUT
5
4
3
2
1
5
4
3
2
1
0
0
43
Advertisement
Chapters
Table of Contents
