Safety Integrated Field Bus Technology: PROFIBUS and PROFIsafe

Integration levels for the safety instrumented system in the process control system

Use communication standards such as PROFIBUS or Ethernet to easily integrate the Safety Integrated system into every open process control system.

You get the full potential of Safety Integrated in combination with SIMATIC PCS 7:

  • One engineering system for process control and process safety applications

  • A common controller platform for SIMATIC PCS 7 process control and process safety

  • Direct and seamless communication between DCS and SIS

  • Integrated data management for basic process control and safety-related automation, including process visualization and diagnostics, eliminating the complicated data handling between BPCS and SIS

  • Automatic integration of safety-related diagnostics in the operator interface with timestamping

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Standard and safety-related data are transmitted over the same bus line with PROFIsafe.

PROFIBUS is the common communication platform of SIMATIC PCS 7 and SIMATIC Safety Integrated. Standard PROFIBUS in combination with the PROFIsafe profile is used for safety-related communication between the CPU of the automation system and safety-related process I/O.

PROFIsafe expands the telegrams by the addition of information with which the PROFIsafe communication partners can detect and compensate transmission errors such as delays, incorrect sequences, repetitions, losses, faulty addressing or data falsification.

PROFIsafe is an IEC 61508 certified profile for PROFIBUS DP/PA and PROFINET. With SIL 3 (Safety Integrity Level) and Category 4 according to EN 954-1, PROFIsafe meets the highest safety requirements for process and manufacturing industries. It enables both standard and safety-related communication on a single cable.