Siemens 6ES7952-1AH00-0AA0 Memory Card

Siemens 6ES7952-1AH00-0AA0 is a RAM memory card for the SIMATIC S7-400 PLC family, offered in a long-design package and delivering 256 KB of memory, purpose-built to augment the CPU's memory resources in industrial automation deployments. As a RAM memory card intended for use with S7-400 CPUs, it expands the system's capacity to accommodate larger configurations, more data logging, and extended program blocks, enabling more sophisticated logic without altering the main CPU. The part number 6ES7952-1AH00-0AA0 is listed by Siemens Industry Mall and multiple distributors as a dedicated RAM memory card for S7-400 installations, confirming its precise role within the SIMATIC ecosystem and its compatibility with the S7-400 family. Manufactured by Siemens and categorized among SIMATIC S7 memory cards, this 256 KB RAM module is designed for straightforward installation in compatible S7-400 configurations to augment memory resources for data handling, configuration storage, and program maintenance within demanding industrial environments.