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6ES7953-8LJ31-0AA0 Siemens
Product Details
Specifications provided for reference. Verify critical details against official manufacturer documentation before installation.
Product Overview
The 6ES7953-8LJ31-0AA0 is a SIMATIC S7 micro memory card from Siemens, designed for firmware or program storage in S7-300, C7, and ET 200 automation systems. It uses 3 V N-Flash (Flash-EPROM) technology and provides 512 kB of non-volatile memory. Commonly installed in CPU modules via a designated slot, the card supports write/read cycles and data retention over a minimum lifecycle, facilitating backup, configuration transfer, or firmware updates. Typical applications include industrial control cabinets, process backup, and system commissioning.
Best Suited For
- Program and firmware storage for S7-300 CPUs
- Configuration transfer between identical S7-300 systems
- Backup of logic and parameter data in C7 or ET 200 modules
- Maintenance tasks requiring card-based data retention