ifm
Supplementary device manual DeviceNet interface in the AS-i ControllerE (AC1318, AC1324), Target from 15
2012-02-29
The fieldbus command channel (module 11)
Module 11, command 8 – read LAS (list of active slaves)
104
6.8
Module 11, command 8 – read LAS (list of active
slaves)
4494
6.8.1
Slave group in module 11
4759
The feedback word can only give information about max. 16 slaves. Therefore the slaves are divided
in 4 groups (
table).
When querying the slave lists any slave address from the requested slave group is to be indicated.
Bit / AS-i slave address
Slave group
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
1
15(A)
14(A)
13(A)
12(A) 11(A) 10(A) 9(A) 8(A) 7(A) 6(A) 5(A) 4(A) 3(A) 2(A) 1(A) 0
*)
2
31(A)
30(A)
29(A)
28(A) 27(A) 26(A) 25(A) 24(A) 23(A) 22(A) 21(A) 20(A) 19(A) 18(A) 17(A) 16(A)
3
15B 14B 13B 12B 11B 10B 9B 8B 7B 6B 5B 4B 3B 2B 1B res
4
31B 30B 29B 28B 27B 26B 25B 24B 23B 22B 21B 20B 19B 18B 17B 16B
*) LAS and LPS have no slave 0, therefore this bit is set to 0!
6.8.2
Request from fieldbus to device
10733
DW
Data content
Bit
DW
3
1
3
0
2
9
2
8
2
7
2
6
2
5
2
4
2
3
2
2
2
1
2
0
1
9
1
8
1
7
1
6
1
5
1
4
1
3
1
2
1
1
1
0
0
9
0
8
0
7
0
6
0
5
0
4
0
3
0
2
0
1
0
0
Word n+1
Word n
Bit
word
1
5
1
4
1
3
1
2
1
1
1
0
0
9
0
8
0
7
0
6
0
5
0
4
0
3
0
2
0
1
0
0
1
5
1
4
1
3
1
2
1
1
1
0
0
9
0
8
0
7
0
6
0
5
0
4
0
3
0
2
0
1
0
0
DW 1
not
used MM
S
T
SLA 0
0
command
number
Legend:
MM
master no.
2 bits
01
bin
= 1
dec
= master 1
10
bin
= 2
dec
= master 2
ST
slave type
1 bit
0 = single slave or A slave
1 = B slave (= addition of 20
hex
or 32
dec
to the slave address)
SLA
slave address
5 bits
00…1F
hex
= 0…31
dec