SIMATIC S7-300F "Safety PLC" The Distributed Safety system with SIMATIC S7-300F and the SIMATIC ET 200S/ET200M failsafe signal modules, were specially developed for distributed safety-relevant applications in production engineering. It offers safety-relevant functionality for the protection of man, machine and the environment using modern electronics and replaces conventional mechanical components. The CPU 315F-2 DP is based on a standard CPU whose operating system has been expanded by various protective mechanisms in order to enable the processing of safety-relevant application programs. However, there are also no restrictions when processing non-safety-relevant programs. Communication between the peripheral modules and the CPU is only over PROFIBUS DP. The data is encapsulated in accordance with the PROFIsafe profile so that the data can be transmitted over the standard field bus without being influenced by any other non-safety-relevant bus subscribers. The ET 200M and/or ET 200S are used for the distributed expansion of a failsafe S7-300F or S7-400F. In a centralized configuration, the S7-300F CPU can be expanded with failsafe digital SM 326 I/O modules. All failsafe modules can diagnose internal and external faults, and are internally redundant. They have their own self-tests and fulfill the safety requirements. In addition, "failsafe" and "non failsafe" I/O modules can be combined in an ET 200 station. Both the failsafe and the standard I/O modules are interfaced via a fieldbus system, i.e. PROFIBUS with the PROFIsafe profile. The failsafe SIMATIC system meets the highest safety requirements: - IEC 61508 (up to SIL 3)
- EN 954 (up to Category 4)
- NFPA 79 - 2002
- NFPA 85
- TÜV certificate no.: Z2 02 03 20411 009
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