Parameters/address space
4.4 Address space
Analog input module F-AI 4xI 0(4)..20mA 2-/4-wire HF (6ES7136-6AA00-0CA1)
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Manual, 08/2018, A5E41448857-AB
4.4
Address space
Address assignment for the analog input module F-AI 4xI 0(4)..20mA 2-/4-wire HF
The analog input module F-AI 4xI 0(4)..20mA 2-/4-wire HF occupies the following address
areas in the F-CPU:
Table 4- 3
Address assignment in the F-CPU
Occupied bytes in the F-CPU:
F-CPU
In input range
In output range
S7-300/400 F-CPUs
IB x + 0 to x + 12
QB x + 0 to x + 3
S7-1200/1500 F-CPUs
IB x + 0 to x + 13
QB x + 0 to x + 4
x = Module start address
Address assignment of the user data and the value status of the analog input module
F-AI 4xI 0(4)..20mA 2-/4-wire HF
The user data occupy the following addresses in the analog input module F-AI 4xI
0(4)..20mA 2-/4-wire HF out of all the assigned addresses in the F-CPU:
Table 4- 4
User data address assignment in the input range
Byte in the F-
CPU
Assigned bits in F-CPU per F-module:
7
6
5
4
3
2
1
0
IB x + 0
Input value at channel 0
(Result of the 1oo2 evaluation channel 0/2)
IB x + 1
IB x + 2
Input value at channel 1
(Result of the 1oo2 evaluation channel 1/3)
IB x + 3
IB x + 4
Input value at channel 2
IB x + 5
IB x + 6
Input value at channel 3
IB x + 7
IB x + 8
—
—
—
—
Value
status*
for AI
3
Value
status*
for AI
2
Value
status*
for AI
1
Value
status*
for AI
0
* Only S7-1200/1500 F-CPUs
x = Module start address
Note
You may only access the addresses occupied by user data and value status.
The other address areas occupied by the F-modules are assigned for functions including
safety-related communication between the F-modules and F-CPU in accordance with
PROFIsafe.
