6ES7954-8LC03-0AA0 SIMATIC S7 4MB Memory Card | Siemens

The Original New Siemens 6ES7954-8LC03-0AA0 SIMATIC S7 4MB Memory Card is a Flash-EPROM storage module designed as the load memory for SIMATIC S7-1x00 controllers and SINAMICS drives. It serves as the non-volatile storage medium for user programs, hardware configurations, and system data, functioning as the "hard drive" for S7-1200 and S7-1500 PLCs. This card is a spare part and the direct successor to the 6ES7954-8LC02-0AA0, offering full functional compatibility. It provides reliable, industrial-grade storage with high endurance and long-term data retention for demanding automation environments.

Core Engineering Highlights:
4 MB Flash-EPROM memory | 3.3V operating voltage | 500,000 minimum erase/write cycles | 10-year data retention (min.) | 24 x 32 x 2.1 mm | 3 g weight | S7-1x00 CPU/SINAMICS compatibility | Spare part | Successor to 6ES7954-8LC02-0AA0

Key Features:

• Original New Siemens 6ES7954-8LC03-0AA0 memory card

• 4 MB Flash-EPROM memory for reliable, non-volatile storage

• 3.3V flash technology for low-power operation

• Minimum 500,000 erase/write cycles for exceptional endurance

• Minimum 10-year data retention after programming

• Required as load memory for SIMATIC S7-1500 CPUs (program and data storage)

• Essential accessory for S7-1200 and S7-1500 controller operation

• Also compatible with selected SINAMICS drive systems

• Spare part designation — direct functional replacement for 6ES7954-8LC02-0AA0

• Industrial-grade NAND Flash with ECC (Error Correction Code) for data integrity

• Compact 24 x 32 x 2.1 mm form factor

• Lightweight: approx. 3 g

Applications:

• Program storage for S7-1200 and S7-1500 CPUs

• Hardware configuration and project data storage

• System firmware updates for CPUs and SINAMICS drives

• Spare part replacement for existing S7 systems

• Program and data transfer between multiple PLC systems

• Load memory for S7-1500 CPU operation

Technical Specifications:

System Compatibility:

• SIMATIC S7-1200 CPUs (all variants)

• SIMATIC S7-1500 CPUs (required as load memory)

• ET 200SP CPUs

• Selected SINAMICS drive systems (S120, G120 with appropriate control units)

Related Products:

• 6ES7954-8LC03-0AA0 – 4 MB (current model)

• 6ES7954-8LE03-0AA0 – 12 MB

• 6ES7954-8LF03-0AA0 – 24 MB

• 6ES7954-8LL03-0AA0 – 256 MB

• 6ES7954-8LP02-0AA0 – 2 GB

• 6ES7954-8LT03-0AA0 – 32 GB

Choose higher capacity cards for larger program storage and data logging requirements.

PLC ERA is an independent industrial automation distributor supplying 100% genuine Original New products through established global supply channels. Siemens, SIMATIC, S7-1200, S7-1500, and SINAMICS are trademarks of Siemens AG.