Configurations and Help with Selection
2.3 Configuration Variants for Fail-safe Systems According to Availability Requirements
Safety Engineering in SIMATIC S7
System Manual, 04/2006, A5E00109529-05
2-11
Configuration Example of S7 Distributed Safety: Single-channel I/O (Stand-alone IM 151-7 F-CPU)
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Figure 2-7
S7 Distributed Safety with Single-channel I/O (Stand-Alone IM 151-7 F-CPU)
Distributed Configuration of S7 Distributed Safety and PROFIBUS DP with Copper Cable
The following are required for distributed configuration with copper cable:
•
One CPU 416F-2, CPU 31xF-2 DP, CPU 31xF-2 PN/DP or IM 151-7 F-CPU
•
One PROFIBUS DP line
•
Fail-safe I/O, for example:
–
One ET 200M with:
IM153-2, F-SMs, and, if necessary, standard SMs,
safety protector (required for SIL3/Category 4 applications only)
–
One ET 200S with:
IM 151-1 HIGH FEATURE or IM 151-7 F-CPU,
fail-safe modules, and, if necessary, ET 200S standard modules
–
One ET 200pro with:
IM 154-2 HIGH FEATURE,
fail-safe modules, and, if necessary, ET 200pro standard modules
–
ET 200eco fail-safe I/O module
–
Fail-safe DP standard slaves
•
Bus connector for connecting the F-CPU and fail-safe I/O to the PROFIBUS DP
