The Siemens SIMATIC S7-400 CPU 412-2 PN, order number 6ES7412-2EK06-0AB0, is a mid-range yet powerful controller engineered for complex automation tasks in process, chemical, and discrete manufacturing industries. This CPU features a balanced architecture with 1 MB of work memory, split equally between code and data, enabling efficient execution of large-scale control programs. Its dual-interface design—combining a PROFINET port (X5) for high-speed Ethernet communication and an MPI/DP port (X1) for 12 Mbit/s fieldbus connectivity—provides exceptional flexibility for integrating drives, HMIs, and remote I/O. Engineered for reliability, the CPU 412-2 PN supports redundant configurations and advanced diagnostics, making it a cornerstone for mission-critical systems. Below is the comprehensive technical specification.
| Attribute |
Specification |
| Product Type |
Siemens SIMATIC S7-400 CPU 412-2 PN |
| Order Number |
6ES7412-2EK06-0AB0 |
| Work Memory |
1 MB total (0.5 MB code / 0.5 MB data) |
| Load Memory |
Internal flash (expandable via external memory card) |
| Retentive Memory |
Yes (configurable for data blocks, timers, counters) |
| Interface 1 (X1) |
MPI/DP – 12 Mbit/s maximum |
| Interface 2 (X5) |
PROFINET (Ethernet) – 100 Mbit/s |
| Power Supply |
External 24 V DC (range: 20.4 V to 28.8 V) |
| Power Protection |
External fuse recommended |
| Programming Software |
STEP 7 V5.x and higher, TIA Portal |
| Max. Data Blocks (DBs) |
Limited by work memory; supports large quantities |
| Max. Function Blocks (FBs) |
Limited by work memory; supports modular programming |
| Max. Functions (FCs) |
Limited by work memory; supports structured code |
| Organization Blocks (OBs) |
Standard OBs for startup, cyclic, time-of-day, error, and interrupt handling |
| S7 Counters |
Unlimited (limited by RAM); retentive capability |
| S7 Timers |
Unlimited (limited by RAM); retentive capability |
| Bit Operation Time |
Approx. 0.01 µs (typical) |
| Word Operation Time |
Approx. 0.02 µs (typical) |
| Fixed-Point Arithmetic |
Approx. 0.05 µs (typical) |
| Floating-Point Arithmetic |
Approx. 0.15 µs (typical) |
| Diagnostics |
Advanced real-time monitoring and error logging |
| High-Availability |
Supports redundant CPU configurations |
| Ambient Temperature (Operation) |
0 °C to 60 °C |
| Dimensions (W x H x D) |
Approx. 50 mm x 290 mm x 210 mm (module only) |
| Weight |
Approx. 1.2 kg |
What Does Our Clients Say
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Laura Navas
Great product!
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Original and fast!
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