Siemens SIMATIC ET 200SP Equipment Manual page 34

Parameters/address space
4.3 Address space
Address assignment of the user data and the value status of the digital input module F-
DI 8×24VDC HF
The user data occupy the following addresses in the F-CPU out of all the assigned addresses
of the digital input module F-DI 8×24VDC HF:
Table 4- 3
Byte in the
F-CPU
IB x + 0
IB x + 1
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.
With 1oo2 evaluation of the sensors, both channels are combined, e. g. DI
1oo2 evaluation of the sensors, you must only access the low-order channel in the safety
program, in this example DI
Additional information
For detailed information about F-I/O access, refer to the SIMATIC Safety – Configuring and
Programming (https://support.industry.siemens.com/cs/ww/en/view/54110126) manual.
See also
S7 Distributed Safety - Configuring and Programming
(https://support.industry.siemens.com/cs/ww/en/view/22099875)
36
Address assignment through user data
7 6
DI DI
7 6
Value Value Value
status for status for status for
DI DI
7 6
.
0
Assigned bits in F-CPU per F-module:
5 4 3
DI DI DI
5 4 3
Value Value
status for status for
DI DI DI
5 4 3
Digital input module F-DI 8x24VDC HF (6ES7136-6BA01-0CA0)
Equipment Manual, 10/2021, A5E50578307-AA
2 1
DI DI DI
2 1
Value Value Value
status for status for status for
DI DI DI
2 1
and DI . With
0 4
0
0
0