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The Siemens 6ES7 952‑1AK00‑0AA0 is a high-performance RAM memory card designed for use with SIMATIC S7‑400 series PLCs to provide reliable storage of user programs, system configurations, and data blocks. With a 1 MB capacity, this memory card enables seamless backup and transfer of automation logic, ensuring that critical control programs are retained during power outages or maintenance operations.
Its robust construction ensures long-term data integrity under typical industrial conditions, while the standardized interface and compact form factor allow easy integration into S7‑400 CPU racks. This module is essential for applications requiring program expansion, secure configuration storage, and efficient system recovery, supporting continuous operation in manufacturing, process control, and infrastructure automation environments.
It features a compact form factor compatible with standard S7‑400 CPU memory slots, enabling easy installation and removal for program transfer, backup, or replacement. The 6ES7 952‑1AK00‑0AA0 supports rapid read/write cycles, allowing efficient program updates, system diagnostics, and data logging without affecting PLC operation.
By providing reliable and expandable memory, this card enhances system resilience, simplifies maintenance procedures, and supports uninterrupted operation of complex automation networks. It is an essential component for engineers and system integrators who require secure, high-capacity, and durable storage solutions for advanced S7‑400 PLC applications.





