Application 2: Safety Mode Sil3/Cat.3/Ple - Siemens SIMATIC ET 200SP HA Equipment Manual

6.3

Application 2: Safety mode SIL3/Cat.3/PLe

Assigning inputs to each other
Digital input module F-DI 16x24VDC HA has 16 fail-safe inputs DI
combine two of these inputs in pairs to form one input.
The following inputs can be combined in pairs:
• DI
• DI
• DI
• DI
• DI
• DI
• DI
• DI
The process signals are read from channels DI
Note
You can mix a 1oo1 evaluation and 1oo2 evaluation on an F-digital input module. You must
connect and configure the inputs according to the fail-safe requirements (SIL3/Cat.3/PLd and
SIL3/Cat.3 or Cat.4/PLe).
Wiring
You perform the wiring on the appropriate terminal block. You can find additional information
on this in section "Pin assignment of the F-DI 16x24VDC HA I/O module (Page 15)".
Sensor supply
The sensor supply can be powered internally or externally.
Wiring diagram – connecting a two-channel sensor equivalent
For each process signal, a two-channel sensor is connected equivalent to two inputs of the F-
digital input module (1oo2 evaluation).
F-DI 16x24VDC HA
Equipment Manual, 08/2021, A5E45647528-AD
and DI
0 8
and DI
1 9
and DI
2 10
and DI
3 11
and DI
4 12
and DI
5 13
and DI
6 14
and DI
7 15
Applications of the F-I/O module
6.3 Application 2: Safety mode SIL3/Cat.3/PLe
to DI
0
, DI , DI , DI , DI , DI , DI
0 1 2 3 4 5
(SIL3). You can
15
and DI .
6 7
43