103BCommunication
10.4 AS-i
S7-1200 Programmable controller
456
System Manual, 11/2011, A5E02486680-05
The digital input module (AS-i SM-U, 4DI) in the AS-i network above has been assigned I/O
address 2. By clicking on the digital input module, the Properties for this AS-i slave device
are shown below.
All AS-i slave I/O addresses are shown when viewing the Properties of the CM 1243-2.
You can access the data of the AS-i slaves in the user program by using the displayed I/O
addresses with the appropriate bit logic operations (for example, "AND") or bit assignments.
Bits 0 to 3 are used for user data.
S la ve n o . 1
(a d d r. 2)
S la ve n o . 2A
(a d d r.3)
(a d d r. 4)
Not used
S la ve 4A
B it 3 B it 2 B it 1 B it 0 B it 3 B it 2 B it 1 B it 0
B it 3 B it 2 B it 1 B it 0 B it 3 B it 2 B it 1 B it 0
Not used
S la ve 3
B it 3 B it 2 B it 1 B it 0 B it 3 B it 2 B it 1 B it 0
B it 3 B it 2 B it 1 B it 0 B it 3 B it 2 B it 1 B it 0
Not used
S la ve 2A
B it 3 B it 2 B it 1 B it 0 B it 3 B it 2 B it 1 B it 0
B it 3 B it 2 B it 1 B it 0 B it 3 B it 2 B it 1 B it 0
Not used
Not used
B it 3 B it 2 B it 1 B it 0 B it 3 B it 2 B it 1 B it 0
S la ve n o . 3
Not used
S la ve 2B
B it 3 B it 2 B it 1 B it 0 B it 3 B it 2 B it 1 B it 0
C o n tro l b its
C o n tro l b its
C M 1243-2
IO bit no.
B it 3B it 2B it 1 B it 0
B it 3B it 2B it 1 B it 0
B it 3B it 2B it 1 B it 0
C o n tro l b its
C o n tro l b its
C o n tro l b its
Not used
Not used
B it 3 B it 2 B it 1 B it 0 B it 3 B it 2
B it 0
B it 1
Not used
Not used
B it 3 B it 2 B it 1 B it 0 B it 3 B it 2 B it 1 B it 0
Not used
S la ve 4B
B it 3 B it 2 B it 1 B it 0 B it 3 B it 2 B it 1 B it 0
IO bit no.
Input byte
number
Not used
S la ve 1
B it 3 B it 2 B it 1 B it 0 B it 3 B it 2 B it 1 B it 0
Not used
Not used
Not used
B it 3 B it 2 B it 1 B it 0 B it 3 B it 2 B it 1 B it 0
Not used
S la ve 3
B it 3 B it 2 B it 1 B it 0 B it 3 B it 2 B it 1 B it 0
S la ve 4A
B it 3 B it 2 B it 1 B it 0 B it 3 B it 2 B it 1 B it 0
Not used
Not used
B it 3 B it 2 B it 1 B it 0 B it 3 B it 2 B it 1 B it 0
Not used
S la ve 2B
B it 3 B it 2 B it 1 B it 0 B it 3 B it 2 B it 1 B it 0
Not used
Not used
B it 3 B it 2 B it 1 B it 0 B it 3 B it 2 B it 1 B it 0
C o n tro l b its
C o n tro l b its
C o n tro l b its
C o n tro l b its
Output byte
number
C P U input register
C P U output register
Not used
S la ve 4B
B it 3 B it 2 B it 1 B it 0 B it 3 B it 2 B it 1 B it 0
1
0
3
2
5
4
7
6
33
.
.
.
5
4
3
2
1
0
34
35
36
33
.
.
.
5
4
3
2
1
0
34
35
36
1
0
3
2
5
4
7
6