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- Siemens 6ES7412-5HK06-0AB0 SIMATIC S7-400H CPU 412-5H PN/DP 1MB Fault-Tolerant Controller Siemens 6ES7412-5HK06-0AB0 SIMATIC S7-400H CPU 412-5H PN/DP 1MB Fault-Tolerant Controller
Siemens 6ES7412-5HK06-0AB0 SIMATIC S7-400H CPU 412-5H PN/DP 1MB Fault-Tolerant Controller
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- Description
The Siemens CPU 412-5H PN/DP (6ES7412-5HK06-0AB0) is a fault-tolerant central processing unit for SIMATIC S7-400H and S7-400F/FH systems, with 1 MB of work memory split 512 KB program and 512 KB data. Five interfaces cover MPI/DP, a dedicated DP port, PROFINET, and two synchronization module ports for redundant CPU pairing.
Technical Specifications
| SKU | 6ES7412-5HK06-0AB0 |
| Brand | Siemens |
| Series | SIMATIC S7-400H |
| Product type designation | CPU 412-5H PN/DP |
| Firmware version | V6.0 |
| Interfaces | 1x MPI/DP, 1x DP, 1x PN, 2 for synchronization modules |
| Programming package | STEP 7 V5.5 SP2 with HF1 or higher |
| Work memory, integrated | 1 Mbyte (512 kbyte program, 512 kbyte data) |
| Load memory, expandable RAM, max. | 64 Mbyte via Memory Card |
| Backup battery | Present, backs up all data; typ. 180 uA, max. 1000 uA |
| Input current, backplane bus 5 V DC | 1.6 A typ., 1.9 A max. |
| Power loss, typ. | 7.5 W |
| Processing time, bit/word operations, typ. | 31.25 ns |
| DB, number max. | 6000, numbered 1 to 16000 |
| FB / FC, number max. | 3000 each, numbered 0 to 7999 |
| Digital channels | 65536 inputs, 65536 outputs, all central |
| Analog channels | 4096 inputs, 4096 outputs, all central |
| Number of DP masters, integrated | 2 |
| Number of IO controllers, integrated | 1 |
| Number of expansion units, max. | 21 |
| Connectable OPs | 47 |
| Slots required | 2 |
| Clock synchronization | Via MPI, DP, AS and Ethernet NTP (as client), 10 ms max. deviation via NTP |
Selection Notes
The two synchronization-module ports are what set this CPU apart from the standard 412 line: they pair a redundant CPU for S7-400H fault-tolerant operation, or run fail-safe F-blocks on S7-400F/FH systems. The integrated PROFINET IO controller adds Ethernet-based I/O alongside the MPI/DP and DP ports, so this variant fits process or safety-relevant plants where a single CPU failure cannot stop the line, rather than the simpler single-CPU 412-1 or 412-2 used in non-redundant stations.