A range of fail-safe, performance-graded CPUs are available for the ET 200SP:

Fail-safe CPUs

• CPU 1510SP F-1 PN:
  The entry-level CPU for standard and fail-safe applications with medium requirements in terms of processing performance and response speed in discrete production technology. The CPU 1510SP F-1 PN can be used as a PROFINET IO controller or as distributed intelligence (PROFINET I-Device).
• CPU 1512SP F-1 PN
  The CPU for standard and fail-safe applications with medium requirements in terms of processing performance and response speed in discrete production technology. The CPU 1512SP F-1 PN can be used as a PROFINET IO controller or as distributed intelligence (PROFINET I-Device).