The product with the part number 6ES7954-8LF04-0AA0 is a SIMATIC S7 Memory Card designed by Siemens for industrial automation systems. Here’s a detailed technical description based on verified specifications:
Core Specifications
- Storage Capacity: 24 MB of 3.3V Flash-EPROM memory , ideal for storing PLC programs, runtime data, and firmware updates.
- Memory Technology: Uses non-volatile Flash-EPROM to retain data without power, ensuring reliable storage in industrial environments.
- Endurance: Supports ≥500,000 delete/write cycles , with data retention of ≥10 years under low-write conditions (<50,000 cycles) or **1 year** under high-write conditions (>450,000 cycles) .
Compatibility
- Works with S7-1200/1500 CPUs and Sinamics drives , enabling seamless integration into Siemens’ Totally Integrated Automation (TIA) architecture.
- Supports firmware updates and program transfer via standard commercial card readers .
Physical Attributes
- Compact dimensions: 24 mm (W) × 32 mm (H) × 2.1 mm (D) , weighing approximately 3 grams .
- Constructed with industrial-grade materials to withstand vibrations, temperature fluctuations, and electromagnetic interference.
Key Features
- Data Backup & Recovery: Critical for safeguarding control logic and process parameters, ensuring rapid system restoration in case of failures.
- Scalability: Provides additional storage for complex projects requiring extended data logging or recipe management.
- Compliance: RoHS-compliant since 2023 , adhering to environmental standards for hazardous substances.
- Reliability: Manufactured in Germany , with robust design for 24/7 operation in harsh factory environments.
Application Scenarios
- Industrial Automation: Used in manufacturing lines, process control systems, and machine automation.
- Energy & Utilities: Deployed in power plants and water treatment facilities for critical data management.
- OEM Machinery: Integrates into original equipment for enhanced diagnostic capabilities and software flexibility.
This memory card is part of Siemens’ active product line (PLM status: PM300) , ensuring long-term availability and support. It replaces earlier models like 6ES7954-8LF02-0AA0 , offering improved performance and compatibility with modern industrial protocols. Always verify compatibility with specific CPU/drive versions before deployment.
PLC
S7-200
LED lamps
ABB


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