High-Availability Process Automation Solution – Siemens 6ES7417-4HT14-0AB0 | S7-400H Series
Where This Product Is Used
The SIEMENS 6ES7417-4HT14-0AB0 CPU 417-4H is the central processing unit of the SIMATIC S7-400H fault-tolerant (redundant) PLC system. It is engineered for processes where unplanned downtime is not an option. Typical deployment environments include:
- Oil & Gas: Pipeline SCADA, compressor station control, wellhead automation, and offshore platform safety systems
- Chemical & Petrochemical: Reactor control, distillation column management, and hazardous-area process loops
- Power Generation: Turbine governor control, boiler management systems (BMS), and grid-tie protection
- Water & Wastewater: Pumping station control, WWTP process automation, and flood-gate management
- Pharmaceutical & Food: Batch processing under FDA 21 CFR Part 11, CIP/SIP cycle control
- Automotive Manufacturing: Press-line control, paint-shop conveyors, and body-shop robotics integration
- Mining & Metals: Conveyor belt systems, smelter process control, and ore-handling automation
In all these environments, the CPU 417-4H operates in a hot-standby redundant pair: two CPUs synchronize in real time so that if one fails, the other takes over within milliseconds — with zero process interruption.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number (SKU) | 6ES7417-4HT14-0AB0 |
| Product Family | SIMATIC S7-400H (High-Availability) |
| CPU Type | CPU 417-4H |
| Firmware Version | V7.x (HT14 revision) |
| Working Memory (RAM) | 30 MB (code + data) |
| Load Memory | Integrated 512 KB Flash; expandable via MMC |
| Processing Speed (Bit) | 0.025 µs / instruction |
| Processing Speed (Word) | 0.05 µs / instruction |
| Max. I/O Addresses | 16 KB inputs / 16 KB outputs |
| Redundancy Interface | 2 × fiber-optic sync links (PROFIBUS DP) |
| Communication Ports | 4 × MPI/PROFIBUS DP (up to 12 Mbit/s) |
| PROFINET Support | Via CP modules |
| Rack Slots Required | 4 slots (UR1/UR2 rack) |
| Supply Voltage | DC 24 V (via backplane bus) |
| Operating Temperature | 0 °C to +60 °C |
| Storage Temperature | −40 °C to +70 °C |
| Degree of Protection | IP20 |
| Weight | approx. 980 g |
| Country of Origin | Germany |
| Dimensions (W×H×D) | 160 × 290 × 210 mm |
Why Engineers Specify This Model
- True Hot-Standby Redundancy: Dual-CPU synchronization at every scan cycle — no data loss, no bump on switchover. Meets IEC 61511 SIL 2/3 architectural requirements when paired with appropriate I/O.
- Massive Processing Power: 30 MB working memory handles complex process models, large data blocks, and multi-instance FB structures without performance degradation.
- Proven S7-400 Ecosystem: Compatible with the full SIMATIC S7-400 I/O range, ET 200 distributed I/O via PROFIBUS DP, and existing TIA Portal / STEP 7 V5.x projects.
- HT14 Revision Advantage: Latest hardware revision with improved ASIC, extended firmware support lifecycle, and enhanced diagnostics via STEP 7 / TIA Portal.
- Seamless Online Change: Supports program download and configuration changes while the process is running — critical for 24/7 continuous operations.
- Integrated Diagnostics: Built-in system diagnostics, interrupt handling, and PROFIBUS DP master/slave capability reduce external diagnostic hardware requirements.
Complete System Bill of Materials
A typical S7-400H redundant station using this CPU requires the following components:
- 6ES7417-4HT14-0AB0 × 2 — CPU 417-4H (one per redundant rack)
- 6ES7400-1TA01-0AA0 — UR2-H Redundant Rack (dual-rack housing)
- 6ES7407-0KA02-0AA0 — PS 407 10A Power Supply Module
- 6ES7960-1AA04-5AA0 — Fiber-Optic Sync Cable Set (for CPU-to-CPU link)
- 6ES7153-2BA02-0XB0 — IM 153-2 Interface Module (for ET 200M distributed I/O)
- 6GK7343-1EX30-0XE0 — CP 343-1 PROFINET Communication Processor (optional)
- 6ES7952-1KK00-0AA0 — 4 MB Memory Card (MMC) for program backup
Contact Konmask for complete BOM pricing and availability on all companion components.
Compliance & Industry Standards
- CE Marking — EU Machinery Directive 2006/42/EC & EMC Directive 2014/30/EU
- UL Listed — UL 508 (Industrial Control Equipment)
- IEC 61131-2 — Programmable Controllers: Equipment Requirements & Tests
- IEC 61511 — Functional Safety for Process Industry (SIL-capable architecture)
- ATEX / IECEx — Suitable for use in Zone 2 hazardous areas with appropriate enclosure
- RoHS Compliant — Directive 2011/65/EU
- PROFIBUS Certified — PNO Certification
Quality Assurance & Sourcing
Konmask sources the 6ES7417-4HT14-0AB0 exclusively from verified supply channels including authorized distributors, OEM decommissioned assets, and factory-sealed surplus stock. Every unit undergoes:
- Visual inspection for physical damage, counterfeit indicators, and label authenticity
- Firmware version verification against Siemens official release records
- Functional power-on test where applicable
- Anti-static packaging with humidity indicator card
- Traceable documentation: serial number logging, inspection report on request
We offer a 12-month warranty against manufacturing defects and DOA (Dead on Arrival) replacement within 30 days of receipt.
How to Source This Part
- Add to Cart — Select quantity and proceed to checkout for standard orders.
- Request a Quote — For bulk orders (2+ units), OEM pricing, or project BOM support, email support@konmask.com.
- Urgent Requirement? — Call or WhatsApp +0086 19859288691 for same-day response on critical plant shutdowns.
- Export Orders — We ship worldwide with DDP/DAP Incoterms available. HS Code: 8537.10 (Programmable Controllers). Export documentation and CCCF certificates provided on request.
Application-Specific FAQ
Q: Is the 6ES7417-4HT14-0AB0 compatible with TIA Portal?
A: Yes. From TIA Portal V13 SP2 onwards, the S7-400H CPUs including CPU 417-4H are fully supported for programming, configuration, and online diagnostics.
Q: Can this CPU be used in a non-redundant (standard) S7-400 rack?
A: Technically the CPU can operate standalone, but it is specifically designed and licensed for H-system redundant operation. For non-redundant applications, the CPU 417-5H or standard CPU 417 variants are more cost-effective.
Q: What is the difference between 6ES7417-4HT14-0AB0 and 6ES7417-4HL04-0AB0?
A: The HT14 is a newer hardware revision with updated ASIC and extended firmware support. The HL04 is an older revision. Both are functionally compatible in the same H-system, but Siemens recommends matching revisions for new installations.
Q: How long does the backup battery last?
A: The integrated backup capacitor maintains RAM content for approximately 10 days without power. For long-term program retention, use the MMC (Micro Memory Card) — the program is stored non-volatilely on the card.
Q: Do you provide the fiber-optic sync cables?
A: Yes. We stock the 6ES7960-1AA04-5AA0 sync cable set. Contact us to bundle with your CPU order for a complete H-system kit.
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Original Source: https://Konmask.com
Contact: support@konmask.com | +0086 19859288691
