Failsafe, redundant automation systems from SIMATIC are used for process control. When a fault occurs, they change into or remain in a safe state or, if the fault in question was hardware-based, they switch over automatically to the redundant system. They provide the highest level of plant availability as well as an integrated, efficient safety concept for plants with high safety requirements.

In contrast to conventional safety technology, the failsafe SIMATIC also enables intelligent system access extending all the way to the electric drives and measuring systems. The SIMATIC S7-400FH provides failsafety and redundancy in one system, and is thus predestined for use in process engineering. Complete integration is established through the PCS 7 process control system.

Components
SIMATIC S7-400FH	Distributed Failsafe I/O
The failsafe SIMATIC S7-400FH is based on a fault-tolerant standard CPU, including reloadable failsafe functionality. more ...	The failsafe SIMATIC controllers can be expanded by configuring the ET 200M and ET 200S stations with failsafe modules. more ...