The process industry frequently features complex technological sequences with high safety demands, and faults and failures in the process automation could have fatal consequences for personnel, machines, plants and the environment. The safety technology used must reliably detect dangerous states in the process and also its own internal errors, and automatically set the plant/application to a safe state.

Safety Integrated for Process Automation is the comprehensive range of products and services from Siemens for safe, fault-tolerant applications in the process industry. This is characterized by:

• Safety-related F/FH automation systems of the S7‑400 series (see Chapter "Automation systems")
• Failsafe communication with the PROFIsafe profile via PROFIBUS (see Section "Communication", PROFIBUS) or PROFINET (see Section "Communication", PROFINET)
• Failsafe transmitters (SITRANS P DS III) on the PROFIBUS PA with PROFIsafe (see Catalog FI 01, Field devices for process automation)
• ET 200M, ET 200iSP, ET 200S and ET 200pro distributed I/O systems with safety-oriented F-I/O modules/submodules (see section "Process I/O")
• Failsafe process instruments/devices for connection to ET 200 distributed I/O systems (see Catalog FI 01, Field devices for process automation)
• SIMATIC Safety Integrated software for implementation and operation of safety applications, with additional components for the engineering system and the operator systems: S7 F Systems, SIMATIC Safety Matrix
• Special applications, for example, Partial Stroke Test
• Safety lifecycle management with support by highly qualified solution partners: services for all phases in the lifecycle of a safety instrumented system (analysis, implementation, and operation)