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
67
8.1.7 Use Case 2: Safety Mode SIL3/Category 3
Assigning Inputs to Each Other
The F-DI modules have 2, 8, or 16 fail-safe inputs (SIL2). A pair of these inputs can be used
as one input (SIL3). The following assignments apply in this case:
Table 8-6 Use Case 2: Assignment of Input Channels to Each Other
8/16 F-DI DC24V PROFIsafe 4/8 F-DI/4 F-DO DC24V/2A PROFIsafe
Input channels DI 0 and DI 4
Input channels DI 1 and DI 5
Input channels DI 2 and DI 6
Input channels DI 3 and DI 7
Input channels DI 8 and DI 12
Input channels DI 9 and DI 13
Input channels DI 10 and DI 14
Input channels DI 11 and DI 15
Input channels DI 0 and DI 4
Input channels DI 1 and DI 5
Input channels DI 2 and DI 6
Input channels DI 3 and DI 7
Sensor Supply
The sensor supply can be provided internally or externally.
Table 8-7 Use Case 2: Assignment of Sensor Supply to Inputs
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
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