Siemens S7-300 - Configuration with F-Sms in Standard Mode

Configuration options
2.2 Configuration with F-SMs in Standard Mode
Fail-safe signal modules
20 Installation and Operating Manual, 01/2010, A5E00085586-10
2.2 Configuration with F-SMs in Standard Mode
Configuration variants in standard mode
When operated in standard mode, the fail-safe signal modules respond similar to standard
S7-300 I/O modules (abbreviated: standard modules). The configuration variants are similar
to the variants of an S7-300 or ET 200M with standard modules.
Exception: The SM 336 F-AI 6 x 0/4 ... 20 mA HART, SM 326; F-DO 10 x DC 24V/2A PP
and SM 326; DO 8 x DC 24V/2A PM operate in safety mode only.
CPUs approved for use in S7-300 systems (central configuration)
All CPUs of the S7-300 family can be implemented in a central configuration when operating
the fail-safe signal modules in standard mode.
Approved IM 153 in ET 200M (distributed configuration)
All IM 153-2/-2 FO interfaces of the ET 200M distributed I/O device can be used when
operating the fail-safe signal modules in standard mode.
Combinations of fail-safe and standard modules supported for operation in standard mode
S7-300/ET 200M support the combined operation of fail-safe signal modules and standard
modules in standard mode.
Additional information
For detailed information on S7-300 configuration variants, refer to the S7-300, CPU 31xC
and CPU 31x: Installation
manual.
For detailed information on the configuration of ET 200M, refer to the
ET 200M Distributed
I/O Device
manual.
For detailed information on implementing fail-safe signal modules as redundant I/O in S7 FH
systems, refer to the
S7-400H Automation Systems; Fault-Tolerant Systems manual.