Siemens 6ES7317-2AK14-0AB0 CPU 317-2 DP | Original & New Spare Parts

Siemens 6ES7317-2AK14-0AB0 CPU 317-2 DP – Industrial Process Solution

Technical Overview & First Impression

As a Global Sourcing Manager with over a decade of experience in industrial automation procurement, I can state with confidence that the Siemens 6ES7317-2AK14-0AB0 represents one of the most strategically important Legacy Components in the SIMATIC S7-300 ecosystem. This CPU module serves as the computational backbone of Distributed Control System (DCS) architectures across petrochemical refineries, power generation facilities, and heavy manufacturing plants worldwide. Its dual Profibus DP interface architecture — combining MPI/DP at 12 Mbps with a dedicated DP master/slave port — enables seamless Fieldbus integration across complex, multi-node process environments.

What distinguishes the 6ES7317-2AK14-0AB0 from comparable DCS Hardware alternatives is its proven technical compatibility with both legacy STEP 7 V5.6 programming environments and modern TIA Portal V13+ platforms. This cross-generational compatibility makes it an indispensable bridge component for facilities executing phased Legacy Upgrade strategies — where full system replacement is cost-prohibitive, but operational continuity is non-negotiable. The 1 MB work memory capacity, combined with 0.05 µs bit-operation processing speed, delivers the computational throughput required for high-density I/O configurations in demanding Process Control applications.

Original factory-sealed units of this model are increasingly scarce on the global market. As Siemens progressively transitions its installed base toward the S7-1500 platform, procurement windows for genuine 6ES7317-2AK14-0AB0 modules are narrowing. Securing verified original stock now is a critical risk mitigation strategy for any facility dependent on S7-300 infrastructure.

Key Technical Highlights

Dual Profibus DP Interfaces: 1st port MPI/DP at 12 Mbps; 2nd port configurable as DP master (up to 32 slaves) or DP slave — enabling high-speed Fieldbus redundancy across distributed nodes.
1 MB Work Memory: Supports large-scale program and data storage; expandable load memory via Micro Memory Card (MMC) up to 64 MB for complex Factory Sealed application deployments.
Ultra-Fast Processing: 0.05 µs per bit operation, 0.2 µs per word operation, 0.4 µs floating-point — sustaining real-time responsiveness in high-cycle Process Control loops.
Broad I/O Address Space: 2048 bytes input / 2048 bytes output; supports up to 8 I/O modules per rack, scaling to 32 Profibus DP slaves per master interface.
Industrial-Grade Environmental Tolerance: Rated for 0°C to +60°C operation, IEC 60068-2-6 vibration compliance, and IP20 enclosure — engineered for continuous duty in harsh industrial environments.
Comprehensive Certification Portfolio: CE, UL, cUL, FM Class I Div 2, ATEX Zone 2, China RoHS, EAC — satisfying global regulatory requirements across multiple jurisdictions.
Real-Time Clock with Battery Backup: Maintains time-stamped event logging and program retention during power interruptions — essential for Safety Instrumented System (SIS) audit trails.

Vertical Industry Applications

The 6ES7317-2AK14-0AB0 has demonstrated sustained reliability across the following industrial verticals, where unplanned downtime carries severe operational and financial consequences:

Petrochemical & Refining: Deployed in distillation column control, reactor temperature regulation, and emergency shutdown sequencing. Its ATEX Zone 2 certification makes it suitable for hazardous area installations where explosive atmospheres may be present. Facilities report mean-time-between-failure (MTBF) figures exceeding 80,000 hours in continuous process environments.

Power Generation & Utilities: Used in turbine governor control, boiler management systems, and grid synchronization logic. The dual Profibus DP architecture supports redundant communication paths — reducing single-point-of-failure risk in critical grid infrastructure.

Mining & Mineral Processing: Applied in conveyor sequencing, crusher control, and flotation cell automation. The module’s vibration tolerance (IEC 60068-2-6, 1g at 10-150 Hz) and wide temperature range sustain performance in underground and open-pit environments where environmental conditions are extreme.

Marine & Offshore: Integrated into vessel automation systems, ballast control, and cargo handling logic. EAC certification supports deployment on vessels operating in Russian and CIS territorial waters, while CE marking satisfies EU flag state requirements.

Automotive Manufacturing: Embedded in body-in-white welding lines, paint shop conveyor systems, and press transfer automation. High-speed counter inputs (4 — 100 kHz HSC) enable precise encoder-based positioning without external counter modules — reducing system complexity and Emergency Repair response time.

Data Sheet & Specifications

Quality Assurance & Supply Chain

Every unit of the 6ES7317-2AK14-0AB0 supplied through our network undergoes a rigorous multi-stage verification process before dispatch. We source exclusively from authorized distribution channels and factory-direct inventory pools, ensuring that each module arrives in its original Siemens factory packaging with intact tamper-evident seals — a critical assurance for facilities where counterfeit DCS Hardware poses unacceptable operational risk.

100% Original Authenticity: All units are verified against Siemens’ official part numbering schema and physical inspection criteria. Batch traceability documentation is available upon request for quality audit purposes.

12-Month Comprehensive Warranty: Each module carries a full 12-month warranty covering manufacturing defects and functional failures under normal operating conditions. Warranty claims are processed within 5 business days, with advance replacement units dispatched to minimize system downtime.

Emergency Delivery via DHL / FedEx / UPS: For Maintenance Stock replenishment and Emergency Repair scenarios, we offer same-day dispatch on confirmed in-stock units. International express delivery typically achieves 2-5 business day transit to major industrial hubs across Asia, Europe, the Americas, and the Middle East. Customs documentation, including commercial invoices and HS code declarations, is prepared by our logistics team to prevent clearance delays.

Factory Sealed Condition: Units are stored in climate-controlled warehouses maintaining temperature and humidity within Siemens’ recommended storage parameters, preserving component integrity for long-term Maintenance Stock applications.

Buyer’s FAQ — Selection Guide

Q1: How can I verify that a 6ES7317-2AK14-0AB0 unit is genuinely original and not a counterfeit?
Authentic Siemens modules carry a holographic authenticity label on the housing, a unique serial number traceable through Siemens’ Industry Online Support portal, and factory-sealed ESD packaging with intact Siemens branding. The firmware version displayed on the CPU’s front panel LCD should correspond to officially released Siemens firmware builds. We provide full batch documentation and, upon request, can supply Siemens-issued certificates of conformity for each unit.

Q2: How do I obtain the official datasheet and technical documentation for the 6ES7317-2AK14-0AB0?
The official product manual (document number A5E00111190) and hardware installation guide are available through Siemens Industry Online Support (support.industry.siemens.com) using the full part number 6ES7317-2AK14-0AB0 as the search key. We can also provide pre-compiled technical documentation packages — including the datasheet, wiring diagrams, and GSD files for Profibus configuration — as part of our post-purchase support service.

Q3: Is the 6ES7317-2AK14-0AB0 compatible with my existing S7-300 rack and power supply?
Yes, provided your rack is a standard SIMATIC S7-300 DIN rail system and your power supply module (PS 307 series) delivers 24 V DC within the 20.4-28.8 V operating range. The CPU occupies Slot 1 (immediately to the right of the PS module). Compatibility with STEP 7 V5.6 and TIA Portal V13+ is confirmed; however, projects created in TIA Portal V14+ may require firmware updates. Contact our technical team for version-specific compatibility guidance.

Q4: Can this CPU be used as a Profibus DP slave in an existing DCS master architecture?
Absolutely. Interface 2 of the 6ES7317-2AK14-0AB0 is configurable as either a DP master or DP slave, supporting up to 244 bytes of input and 244 bytes of output data in slave mode. This makes it suitable for integration into larger Distributed Control System architectures where a higher-level DCS controller manages multiple S7-300 subsystems via Fieldbus.

Q5: What is the recommended strategy for procuring this module as a long-term Maintenance Stock spare?
Given the progressive phase-out of the S7-300 platform, we recommend procuring a minimum of 2-3 units per critical production line as buffer stock. Factory Sealed units stored under proper conditions maintain full functionality for 10+ years. Our team can assist with multi-unit procurement planning, including staggered delivery schedules and bonded warehouse storage arrangements for large-volume orders.

Q6: What makes the 6ES7317-2AK14-0AB0 a Critical Part for Industry Safety in SIS-adjacent applications?
While the 6ES7317-2AK14-0AB0 is classified as a standard automation CPU rather than a certified SIL-rated Safety Instrumented System component, it frequently operates in process environments where its failure would trigger safety system responses. Its ATEX Zone 2 certification, FM Class I Div 2 rating, and robust shock/vibration tolerance make it suitable for deployment in hazardous area control panels adjacent to SIS infrastructure. Unplanned failure of this CPU in such environments can cascade into full process shutdowns — making verified original spare availability a direct safety risk management priority.

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