The safety-oriented SIMATIC controllers are based on a standard CPU whose operating system and hardware components have been supplemented with various protection mechanisms. This means they can also be used as standard controllers.

Safety-relevant tasks can be realized therefore cost-efficiently with only one CPU or using separate installation technology as before.

The safety-oriented CPUs can be expanded with the safety-oriented signal modules of the ET 200M, ET 200S and ET 200pro (IP67) and/or the ET 200eco block I/Os (IP67).

Communication between two safety-oriented CPUs or between a safety-oriented CPU and assigned safety-oriented I/Os takes place through PROFIBUS or PROFINET with PROFIsafe profile.

More highlights in overview

• Programming with STEP 7 and S7 Distributed Safety in FBD and LAD
  • Library with TUV-certified function blocks
• Coexistence of standard and safety ranges in one CPU possible
  • Changes to the standard range have no effect on the existing signatures of the safety-relevant part of the range
• The safety-oriented SIMATIC controllers comply with the highest safety level:
  • IEC 61508 and EN 62061 (up to SIL 3)
  • ISO 13849-1 (up to Cat. 4)
  • NFPA 79 - 2002 and NFPA 85
  • UL 1998, UL 508, UL 991
  • TUV certificate No.: Z10 05 08 20411 002