SIEMENS 6ES7315-2FJ14-0AB0 CPU315F-2 PN/DP Central Processing Unit | Replacement, Equivalent & Selection Guide
The SIEMENS 6ES7315-2FJ14-0AB0 is a high-performance fail-safe CPU from the SIMATIC S7-300 series, designed for demanding process automation and safety-critical applications. This selection guide helps engineers and procurement teams identify the right model, understand compatible replacements, and make confident sourcing decisions.
Technical Specifications
- Part Number: 6ES7315-2FJ14-0AB0
- Model: CPU315F-2 PN/DP
- Series: SIMATIC S7-300
- CPU Type: Fail-Safe (F-CPU)
- Work Memory: 512 KB
- Load Memory: 8 MB (integrated MMC slot)
- Processing Speed: 0.05 ms / 1000 instructions (binary)
- Communication Interfaces: 1x PROFINET IO (2-port switch), 1x MPI/PROFIBUS DP (up to 12 Mbit/s)
- Safety Integrity Level: SIL 3 (IEC 61508), Category 4 (EN 954-1)
- I/O Addressing: Up to 2048 bytes digital I/O; 512 bytes analog I/O
- Counters / Timers: 256 / 256
- Supply Voltage: DC 24 V (via backplane bus)
- Operating Temperature: 0 to +60 degrees C
- Dimensions (W x H x D): 80 x 125 x 130 mm
- Weight: Approx. 500 g
- Certifications: CE, UL, cULus, ATEX Zone 2, FM Class I Div 2
Compatible Replacement & Equivalent Models
When the 6ES7315-2FJ14-0AB0 is unavailable or end-of-life, the following models offer functional equivalence or direct replacement paths. Always verify firmware compatibility and I/O mapping before substitution.
- 6ES7315-2FJ14-0AB0 — Original model (this listing); preferred for direct drop-in replacement
- 6ES7315-2FH14-0AB0 — Earlier firmware revision; functionally equivalent, verify MMC compatibility
- 6ES7315-2FG10-0AB0 — Predecessor model; reduced work memory (256 KB), check program size
- 6ES7317-2FK14-0AB0 (CPU317F-2 PN/DP) — Upward-compatible upgrade; larger memory and faster processing for expanded projects
- 6ES7315-2EH14-0AB0 (CPU315-2 PN/DP) — Standard (non-fail-safe) equivalent; use only when SIL/safety functions are not required
- 6ES7318-3FL01-0AB0 (CPU319F-3 PN/DP) — High-end upgrade for multi-DP master configurations
Note: Konmask.com stocks both original and verified-equivalent units. Contact us to confirm availability and cross-reference suitability for your specific application.
Why Choose the Original Model
- Certified Fail-Safe Architecture: Native SIL 3 / Cat. 4 safety functions without additional safety modules
- Dual-Port PROFINET Switch: Enables line topology wiring, reducing cabling cost in large installations
- Proven Field Reliability: Widely deployed in chemical, oil and gas, and automotive safety systems globally
- Seamless TIA Portal and STEP 7 Integration: Full compatibility with both legacy STEP 7 V5.x and TIA Portal V13+
- Long-Term Spare Parts Ecosystem: Extensive global installed base ensures continued availability of compatible I/O modules and accessories
- Integrated MMC Slot: Program backup and firmware updates without additional hardware
Typical Applications
- Emergency shutdown (ESD) systems in oil and gas facilities
- Safety instrumented systems (SIS) in chemical and petrochemical plants
- Automotive body-shop and press-line safety control
- Pharmaceutical batch process control with safety interlocks
- Water treatment plant SCADA with fail-safe I/O
- Power generation turbine control and protection systems
- Food and beverage high-care zone machinery safety
System Compatibility
- Rack: SIMATIC S7-300 standard rail (any width); UR1, UR2, UR2-H
- Power Supply: PS307 (2A / 5A / 10A) or PS305 (2A)
- Signal Modules: All standard SM300 series; F-SM modules (e.g., SM326 F-DI, SM336 F-AI) for safety I/O
- Communication Processors: CP343-1, CP343-5, CP342-5 for extended networking
- Function Modules: FM350, FM351, FM352, FM355 for high-speed counting and positioning
- Programming Software: STEP 7 V5.5 SP4+, TIA Portal V13 SP1 and above
- HMI: SIMATIC HMI TP/MP series via PROFINET or MPI; WinCC flexible / WinCC V7+
Selection Guide
Use the decision matrix below to select the most appropriate CPU for your project requirements:
- Safety required (SIL 2-3) + PROFINET + up to 512 KB memory: 6ES7315-2FJ14-0AB0 — This model
- Safety required + larger program (over 512 KB): Consider CPU317F-2 PN/DP (6ES7317-2FK14-0AB0)
- No safety requirement + PROFINET + cost-sensitive: CPU315-2 PN/DP (6ES7315-2EH14-0AB0)
- Multiple DP masters required: CPU319F-3 PN/DP (6ES7318-3FL01-0AB0)
- Migration to S7-1500F platform: SIMATIC S7-1515F-2 PN (consult Konmask for migration support)
- Retrofit / spare part for existing S7-300F system: 6ES7315-2FJ14-0AB0 (direct replacement, this listing)
Quality Assurance & Sourcing
- Genuine Parts Only: All units sourced from authorized distributors or verified OEM channels
- Pre-Shipment Inspection: Visual inspection, label verification, and functional power-on test
- Traceability: Batch records and supplier documentation available on request
- Packaging: Original or equivalent ESD-safe anti-static packaging with foam protection
- Warranty: 12-month warranty against manufacturing defects; DOA replacement within 7 days
- Lead Time: In-stock units ship within 1-3 business days; sourced units 7-15 business days
How to Order
- Step 1: Confirm part number: 6ES7315-2FJ14-0AB0
- Step 2: Specify quantity and required delivery timeline
- Step 3: Contact us via email or phone for a formal quotation (RFQ)
- Step 4: Review quotation, confirm order, and arrange payment (T/T, L/C, or trade assurance)
- Step 5: Receive shipment with full documentation (invoice, packing list, test report)
Email: [email protected] | Phone/WhatsApp: +0086 19859288691 | Website: https://Konmask.com
Replacement & Compatibility FAQ
Q: Can I replace 6ES7315-2FJ14-0AB0 with 6ES7315-2FH14-0AB0 directly?
A: In most cases yes — both are CPU315F-2 PN/DP variants. Verify the firmware version on your MMC is compatible with the replacement unit’s hardware revision before swapping.
Q: Is the CPU315F-2 PN/DP compatible with TIA Portal?
A: Yes. Full support is available from TIA Portal V13 SP1 onwards. STEP 7 V5.5 SP4 or higher is required for legacy programming environments.
Q: What is the difference between CPU315F-2 PN/DP and CPU315-2 PN/DP?
A: The F designation indicates fail-safe capability (SIL 2/3 certified). The standard CPU315-2 PN/DP does not support safety-rated I/O or F-program blocks and cannot be used in SIS applications.
Q: Can I use third-party F-I/O modules with this CPU?
A: Only SIEMENS-certified F-I/O modules (SM326, SM336, etc.) are validated for use in safety-rated configurations. Third-party modules may be used for standard I/O only.
Q: What happens if the original model is discontinued?
A: Konmask.com maintains stock of both current and legacy SIEMENS S7-300 CPUs. We also provide migration consultation for customers transitioning to the S7-1500 platform.
Q: Do you provide a certificate of conformity?
A: Yes. A certificate of conformity and supplier declaration are available upon request for all orders.
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Original Source: https://Konmask.com
Contact: [email protected] | +0086 19859288691
