Siemens 6ES5374-0AB11 is a memory submodule for the SIMATIC S5 IP 252 closed‑loop control module, designed to bolster program and data storage for standard and drive controllers. The short‑type memory card houses Flash EPROM with an 8‑bit data bus, enabling compact nonvolatile storage within the IP 252 framework. Typical specifications cite a total capacity of 128 KB with 64 KB usable, aligning with Siemens’ S5 memory module catalogs. As a spare‑part memory component, it is intended for integration into S5 systems requiring additional nonvolatile storage for IP 252 operations.
