PCS 7 Takes You Beyond the Limits of...

The SIMATIC S7-400FH system features a unique design that is flexible, modular and redundant, and enables the assembly of extremely fault-tolerant architectures. Unlike traditional leg-based architectures, where the failure of a single component causes shutdown of an entire leg of the system, the SIMATIC S7-400FH system integrates certified safety-fieldbus technology, allowing each module to function independently of the other modules in the system.

The level of fault-tolerance can be tailored to match the needs of the application by mixing and matching single, dual and triple redundancy in the same system. As a result, the SIMATIC S7-400FH architecture tolerates multiple faults with no degradation in safety since every component of the system is certified to SIL 3.

Third-party system reliability modeling has shown that Siemens Flexible Modular Redundancy™ delivers higher levels of availability than traditional dual and triple redundant architectures. At the same time, the flexibility of the architecture allows redundancy only where it is needed, providing a more attractive and cost-effective solution than traditional one-size-fits-all architectures.

Benefits with Flexible Modular Redundancy™