Siemens 6ES7291-8GE20-0XA0 Profibus DP Interface

Siemens 6ES7291-8GE20-0XA0 memory module, 32K, is a spare-part expansion card for SIMATIC S7-200 MC 291 CPUs. This 32 kilobyte memory module plugs into the S7-200 memory expansion interface to extend the controller’s data storage, enabling larger data blocks, tables, and variable storage for compact automation tasks. The part number 6ES7291-8GE20-0XA0 is catalogued as a memory module, with some listings referencing the -E variant 6ES7291-8GE20-0XA0-E. Sold in its original package, this Siemens module meets the S7-200 hardware standards and can retrofit legacy installations that require additional memory without replacing the CPU. Typical applications include small to mid-size automation projects using S7-200 MC 291 CPUs where more memory supports extended data logging, configuration data, and larger program/data sets. Users should verify compatibility with their exact CPU model and memory-slot configuration before ordering, as the memory module’s form factor and connector arrangement follow the S7-200 memory expansion specifications.