Siemens 6ES7417-4HT14-0AB0 CPU 417H Central Processing Unit
Siemens CPU 417H
SIMATIC S7-400H CPU
S7-400H High Availability
Place of Origin:
Germany
Brand Name:
Siemens
Siemens CPU 417H
,SIMATIC S7-400H CPU
,S7-400H High Availability
Siemens 6ES7417-4HT14-0AB0 CPU 417H Central Processing Unit
The 6ES7417-4HT14-0AB0 is a SIMATIC S7-400H CPU 417H for S7-400H systems, with 30 MB integrated work memory, one MPI/DP interface, one PROFIBUS DP interface and two interfaces for synchronization modules. Siemens lists this article as no longer available.
Product Role in the S7-400H System
Siemens identifies this article as the CPU 417H central processing unit for the S7-400H. The CPU provides the control-processing resources of the H system and includes an MPI/DP interface, a separate PROFIBUS DP interface, and two dedicated interfaces for synchronization modules. In redundant operation, the synchronization interfaces are used with IF 960 synchronization modules; in stand-alone operation, those interfaces remain free and covered.
Technical Specifications
CPU, memory and processing
| Product designation | CPU 417H |
| Article number | 6ES7417-4HT14-0AB0 |
| Firmware version | V4.5 |
| Programming package | STEP 7 V5.3 SP2 or higher with hardware update |
| Work memory | 30 MB integrated: 15 MB code + 15 MB data |
| Integrated load memory | 256 KB RAM |
| Expandable FEPROM | 1 MB to 64 MB with FLASH memory card |
| Expandable RAM | 256 KB to 64 MB with RAM memory card |
| Battery backup | Yes, all data |
Processing times, counters and timers
| Bit instruction execution time | 18 ns |
| Word instruction execution time | 18 ns |
| Fixed-point arithmetic | 18 ns |
| Floating-point arithmetic | 54 ns |
| S7 counters | 2048 |
| S7 timers | 2048 |
| Timer setting range | 10 ms to 9990 s |
Interfaces and PROFIBUS data
| Interface X1 | Integrated RS 485 / PROFIBUS; electrically isolated |
| X1 functionality | MPI or PROFIBUS DP master |
| X1 maximum transmission rate | 12 Mbit/s |
| X1 connection resources | MPI: 44; DP: 32 |
| X1 DP slaves | Maximum 32 |
| X1 DP address range | Maximum 2 KB inputs / 2 KB outputs |
| Interface X2 | Integrated RS 485 / PROFIBUS; electrically isolated |
| X2 functionality | PROFIBUS DP master |
| X2 maximum transmission rate | 12 Mbit/s |
| X2 DP slaves | Maximum 125 |
| X2 DP address range | Maximum 8 KB inputs / 8 KB outputs |
| Synchronization interfaces | IF1 and IF2; plug-in synchronization module, fiber-optic cable |
| Synchronization cable | Maximum 10 km |
I/O, diagnostics and physical data
| Total I/O address area | 16 KB inputs / 16 KB outputs |
| MPI/DP I/O address area | 2 KB inputs / 2 KB outputs |
| DP I/O address area | 8 KB inputs / 8 KB outputs |
| Process image | 16 KB inputs / 16 KB outputs, programmable |
| Process image partitions | Maximum 15 |
| Consistent data | Maximum 244 bytes |
| Diagnostic buffer | Yes; maximum 3200 entries, default 120 |
| Status / modify variable | Yes; maximum 70 variables |
| Forcing | Yes; maximum 512 variables |
| Programming languages | LAD, FBD, STL, SCL, CFC, Graph, HiGraph |
| Mounting dimensions W × H × D | 50 × 290 × 219 mm |
| Slots required | 2 |
| Weight | Approx. 0.995 kg |
Power and current data
| S7-400 bus current at 5 V DC | Typical 1.5 A; maximum 1.8 A |
| 24 V DC bus consumption | CPU does not consume current at 24 V; voltage is made available on the MPI/DP interface |
| Current available to connected components | Maximum 150 mA per MPI/DP interface |
| DP interface current output at 5 V DC | Maximum 90 mA |
| Backup current | Average 970 µA up to 40 °C; maximum 1980 µA |
| External backup voltage | 5 V to 15 V DC |
| Typical power loss | 7.5 W |
Application & Failure Scenarios
Where it is used
Designed for SIMATIC S7-400H high-availability systems, including redundant CPU operation, synchronization and PROFIBUS DP communication.
Why buyers search for this CPU
Typically sought for CPU replacement, fault investigation or restoration of an S7-400H system after a component failure.
Configuration & Replacement Checks
Before replacement, verify the exact article number and the installed system configuration. The official manual identifies STEP 7 V5.3 SP2 or higher with hardware update for this CPU and specifies IF 960 synchronization modules for the two synchronization interfaces in redundant operation.
Lifecycle & Documentation
Siemens currently lists 6ES7417-4HT14-0AB0 as no longer available and identifies it as a repair part. The Siemens Industry Mall record states that the product was discontinued on 01 October 2023 and directs users to SIOS support ID 59903098 for successor information.
Documentation basis: Siemens Industry Mall product record and Siemens SIMATIC S7-400H System Manual, document A5E00267695-09. For the 6ES7417-4HT14-0AB0 datasheet, use the exact article number when checking the original Siemens documentation.
Delivery & Warranty
Part identification, visible-condition inspection and available functional checks before dispatch.
Protective industrial packaging selected for the supplied unit.
Handled according to the agreed quotation and order terms.
Report the issue promptly with supporting evidence for review.
Coverage follows the agreed quotation/order; product-defect claims are reviewed against supplied-unit records.
FAQ
How much work memory does the CPU 417H provide?
Which communication interfaces are built into this CPU?
Can the two synchronization interfaces be used in stand-alone operation?
What should be checked before replacing this CPU?
Is 6ES7417-4HT14-0AB0 still an active Siemens product?
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