

The SIEMENS SIMATIC S7-400 CPU 414F-3 PN/DP (MLFB 6ES7414-3FM06-0AB0) is a flagship fail-safe CPU engineered for high-speed, safety-oriented automation systems. It combines advanced processing power with integrated PROFINET and PROFIBUS DP interfaces, making it ideal for complex applications in heavy industry, chemical plants, and manufacturing lines. This CPU features 4 MB of work memory split into 2 MB for code and 2 MB for data, supporting extensive program blocks and unlimited retentive counters/timers. The built-in IF 964-DP plug-in interface adds modular expansion capabilities, while the Ethernet/PROFINET port enables seamless remote diagnostics and data exchange. Designed for SIL 3 compliance, it delivers reliable performance under harsh conditions, backed by a 100% original and new condition with fast global shipping.
| Specification | Details |
|---|---|
| Product Model | 6ES7414-3FM06-0AB0 |
| Series | SIMATIC S7-400 |
| CPU Type | CPU 414F-3 PN/DP (Fail-safe) |
| Work Memory | 4 MB total (2 MB code + 2 MB data) |
| Load Memory | Flash memory (configurable, size depends on project) |
| Retentive Memory | Available for retentive data blocks (configurable via programming) |
| Integrated Interface 1 | MPI/DP (X1) – 12 Mbit/s, supports MPI and PROFIBUS DP |
| Integrated Interface 2 | Ethernet/PROFINET (X5) – for high-speed network communication |
| Integrated Interface 3 | IF 964-DP plug-in (IF1) – modular expansion for additional communication or I/O |
| Power Supply | External 24 V DC (typical), external protection recommended |
| Programming Software | STEP 7 V5.x or TIA Portal (depending on firmware version) |
| Max. Data Blocks (DBs) | Unlimited (limited by RAM capacity) |
| Max. Function Blocks (FBs) / Functions (FCs) | Unlimited (limited by RAM capacity) |
| Organization Blocks (OBs) | Comprehensive set: OB1 (main), OB10-OB100 (cyclic interrupts), OB80-OB87 (error handling), and more |
| S7 Counters | Unlimited (RAM-limited), retentive |
| S7 Timers | Unlimited (RAM-limited), retentive |
| Safety Level | SIL 3 (IEC 61508) / PL e (ISO 13849) |
| Application Areas | Heavy industry, process automation, manufacturing, safety-critical systems |
| Condition | 100% Original and New – ready for immediate shipment |

What Does Our Clients Say
Mitsubishi MR-J4
Laura Navas
Great product!
2019/12/01
Keyence sensor
EQDR SALES
Original and fast!
2020/02/22