SIMATIC S7-400 CPU 414F-3 PN/DP 4 MB

SIMATIC S7-400 CPU 414F-3 PN/DP 4 MB

SKU: 6ES7414-3FM07-0AB0 Categories: ,

$14,079.23 – $15,643.58

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CPU 414F-3 PN/DP — fail-safe CPU, 4MB work memory, SIL3/PLe safety rating, same interface layout as CPU 414-3 PN/DP; firmware below V7.0.3 has a known denial-of-service vulnerability (SSA-557541). [VERIFIED via Siemens official datasheet]

Technical Specifications

Product Type Fail-safe CPU
Work Memory 4 MB total (2 MB code, 2 MB data)
Safety Rating SIL 3 (IEC 61508) / PL e (ISO 13849-1)
Interfaces Same as CPU 414-3 PN/DP: MPI/DP, Ethernet/PROFINET, IF964-DP slot
Security Note Versions below firmware V7.0.3 affected by denial-of-service vulnerability per Siemens advisory SSA-557541 — update recommended

Typical Applications

Fail-safe version of the CPU 414-3 PN/DP, running both standard and SIL3-rated safety logic on one CPU — used for medium-performance applications with integrated functional safety requirements, such as plants needing emergency shutdown systems alongside standard process control.

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