Siemens AG 6ES7-952-1AK00-0AA0 RAM Memory Module

Siemens 6ES7-952-1AK00-0AA0 RAM Memory Card is a long-design RAM module for the SIMATIC S7-400 family of PLCs, offering 1 MB of RAM to augment the CPU's memory resources and accommodate larger programs, data blocks, and more extensive diagnostic or logging routines without changing the core CPU hardware. Renamed in Siemens catalogs as 6ES7952-1AK00-0AA0, this memory card is installed in compatible S7-400 CPUs as a dedicated RAM card, effectively expanding the processor's working memory and enabling faster execution of larger control logic and richer data handling. In the field, it is used with S7-400 CPU modules to provide extra RAM capacity for larger projects, extended data blocks, and more extensive process logging; the long-form design is a defining feature that fits Siemens' S7-400 memory-card ecosystem.