Siemens 6ES7954-8LP03-0AA0 SIMATIC S7-1500 Memory Card 256 MB | Replacement, Equivalent & Selection Guide
The Siemens 6ES7954-8LP03-0AA0 is a 256 MB SIMATIC Memory Card designed exclusively for use with the SIMATIC S7-1500 and ET 200MP CPU families. It serves as the primary program and data storage medium, replacing the traditional MMC used in S7-300/400 systems. This page provides full technical specifications, compatible replacement models, a structured selection guide, and sourcing information to help engineers and procurement teams make confident decisions.
Technical Specifications
- Part Number: 6ES7954-8LP03-0AA0
- Brand / Manufacturer: Siemens AG
- Product Family: SIMATIC S7-1500 / ET 200MP
- Card Type: SIMATIC Memory Card (SMC)
- Storage Capacity: 256 MB
- Interface: Proprietary slot (S7-1500 CPU front connector)
- Supported Functions: Program storage, firmware update, CPU restore, data logging, recipe storage
- Operating Temperature: 0 °C to +60 °C
- Storage Temperature: −40 °C to +85 °C
- Protection Class: IP20
- Dimensions (W × H × D): Approx. 25 × 15 × 2 mm (standard SMC form factor)
- Weight: Approx. 2 g
- Firmware Version Support: Compatible with TIA Portal V13 SP1 and above
- MLFB / Order Number: 6ES7954-8LP03-0AA0
- Successor to: 6ES7954-8LP02-0AA0 (previous hardware revision)
Compatible Replacement & Equivalent Models
The table below lists direct replacements and functional equivalents for the 6ES7954-8LP03-0AA0. Always verify firmware compatibility before substitution.
- 6ES7954-8LP02-0AA0 — Previous hardware revision (HW Rev. 2); functionally identical, same 256 MB capacity. Direct drop-in replacement in most applications.
- 6ES7954-8LF03-0AA0 — 24 MB SMC; suitable only for small programs. Not a capacity equivalent — use only if program size permits.
- 6ES7954-8LL03-0AA0 — 2 GB SMC; upward-compatible replacement with larger storage. Recommended when data logging or recipe volumes are growing.
- 6ES7954-8LT03-0AA0 — 32 GB SMC; maximum capacity option for high-volume data logging applications.
- Third-party SMC-compatible cards — Not officially supported by Siemens. Use of non-OEM cards may cause CPU boot errors or firmware rejection. Konmask.com supplies only genuine Siemens SMC cards.
Why Choose the Original Model
- Guaranteed compatibility: Engineered and validated by Siemens for S7-1500 / ET 200MP CPUs — no compatibility risk.
- Firmware integrity: Supports CPU firmware updates and restore functions that third-party cards cannot reliably perform.
- Industrial-grade endurance: Rated for extended write cycles and wide temperature ranges typical of factory environments.
- Warranty & traceability: Genuine Siemens parts carry full manufacturer warranty and are traceable via SIMATIC Automation Tool.
- TIA Portal integration: Seamless project download, backup, and restore via TIA Portal without additional configuration.
Typical Applications
- SIMATIC S7-1500 CPU program and data storage (primary use case)
- ET 200MP distributed I/O with integrated CPU
- CPU firmware update and factory restore operations
- Recipe and parameter storage for batch manufacturing
- Data logging for process monitoring and quality traceability
- Spare / replacement card for maintenance and rapid CPU swap-out
System Compatibility
- Compatible CPUs: All SIMATIC S7-1500 standard CPUs (CPU 1511, 1513, 1515, 1516, 1517, 1518 series and variants), ET 200MP CPU 1510SP / 1512SP
- Not compatible with: S7-300 (uses MMC 6ES7953-8Lxx), S7-400 (uses CF card), S7-1200 (uses internal flash, no external SMC slot), LOGO! controllers
- Engineering software: TIA Portal V13 SP1 and above (V15.1 / V16 / V17 / V18 / V19 recommended)
- Communication: Card is read/written via CPU front panel slot; no direct PC interface required for normal operation
Selection Guide
Use the following criteria to select the correct SIMATIC Memory Card capacity for your application:
- Program size < 10 MB, no data logging: 6ES7954-8LF03-0AA0 (24 MB) — entry-level option
- Program size 10–200 MB, moderate data logging: 6ES7954-8LP03-0AA0 (256 MB) ← This product — most common choice for standard S7-1500 applications
- Program size > 200 MB or heavy data logging: 6ES7954-8LL03-0AA0 (2 GB)
- High-volume data logging / historian applications: 6ES7954-8LT03-0AA0 (32 GB)
- Spare card for rapid CPU replacement: Match the capacity of the card currently installed in the production CPU
Quality Assurance & Sourcing
- Origin: Genuine Siemens product, sourced through authorized industrial distribution channels
- Condition: New, original packaging (OVP) — factory sealed
- Inspection: Each unit is visually inspected and label-verified before shipment
- Documentation: Certificate of conformity and packing list available on request
- Export compliance: Subject to applicable export control regulations; buyers are responsible for import licensing in their jurisdiction
- Anti-counterfeit: Konmask.com does not source from grey-market or unverified channels. Hologram and Siemens part label intact on all units.
How to Order
- Add to cart directly on this page for standard orders
- Request a quote for bulk quantities (> 10 units) or project-based procurement — email support@konmask.com
- Lead time: In-stock items ship within 1–3 business days; out-of-stock items subject to availability — contact us for ETA
- Payment: T/T (bank transfer), PayPal, and major credit cards accepted
- Shipping: DHL Express, FedEx International, and sea freight available; worldwide delivery
- Returns: 30-day return policy for unused, unopened items in original packaging
Replacement & Compatibility FAQ
Q: Can I use 6ES7954-8LP02-0AA0 instead of 6ES7954-8LP03-0AA0?
A: Yes. The -8LP02- is the previous hardware revision with identical capacity and function. It is a direct replacement in virtually all S7-1500 applications.
Q: Will a 2 GB or 32 GB SMC work in place of the 256 MB card?
A: Yes, larger-capacity SMC cards are upward-compatible. The CPU will use only the space required by the program and data. There is no functional penalty for using a higher-capacity card.
Q: Can I use a standard SD card or USB drive instead?
A: No. The S7-1500 CPU slot accepts only genuine Siemens SIMATIC Memory Cards. Standard SD cards are not recognized and will not boot the CPU.
Q: How do I transfer a program from one CPU to another using this card?
A: Download the project to the SMC via TIA Portal, remove the card, insert it into the target CPU, and power on. The CPU will load the program automatically from the card.
Q: Is this card compatible with S7-1200?
A: No. S7-1200 CPUs use internal flash memory and do not have an SMC slot. This card is for S7-1500 and ET 200MP only.
Q: What happens if the memory card is removed while the CPU is running?
A: The CPU will go to STOP mode and generate a diagnostic error. Always power down or switch to STOP before removing the card.
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