Fail-Safe Electronic Modules
8.1 8 /16 F-DI DC24V PROFIsafe Digital Electronic Module
ET 200pro Distributed I/O System - Fail-Safe Modules
Operating Instructions, 05/2007, A5E00394073-02
65
8.1.6
Use Case 1: Safety Mode SIL2/Category 3
Sensor Supply
The sensors can be powered internally or externally.
Table 8-4
Use Case 1: Assignment of Sensor Supply to Input Channels
8/16 F-DI DC24V PROFIsafe
4/8 F-DI/4 F-DO DC24V/2A PROFIsafe
Input channels DI 0 to DI 3: Sensor supply Vs1
Input channels DI 4 to DI 7: Sensor supply Vs2
Input channels DI 8 to DI 11: Sensor supply Vs3
Input channels DI 12 to DI 15: Sensor supply Vs4
Input channels DI 0 to DI 3: Sensor supply Vs1
Input channels DI 4 to DI 7: Sensor supply Vs2
Wiring Diagram for Use Case 1 – Connecting One Sensor Via One Channel
One sensor is connected via one channel for each process signal (1oo1 evaluation).
The wiring is carried out at the appropriate connection module.
The figures below illustrate an example wiring diagram for channel groups 1 and 2.
8/16 F-DI
4/8 F-DI/4 F-DO
1L+
M
DI0 DI1 DI2 DI3
DI4 DI5 DI6 DI7
Vs1 Vs2
L+ M
S0 S1 S2 S3
S4 S5
S6 S7
1L+
Figure 8-3
Wiring Diagram for F-DI Modules - One Sensor Connected Via One Channel, Internal
Sensor Supply
8/16 F-DI
4/8 F-DI/4 F-DO
1L+
M
DI0 DI1 DI2 DI3
DI4 DI5 DI6 DI7
Vs1 Vs2
L+ M
S0 S1 S2 S3
S4 S5 S6 S7
1L+
Figure 8-4
Wiring Diagram for F-DI Modules - One Sensor Connected Via One Channel, External
Sensor Supply
