Siemens 6ES5910-0AA41 Programmable Logic Controller Module

Siemens 6ES5910-0AA41 is a SIMATIC S5 memory submodule (EPROM) designed specifically for the S5-110A programmable logic controller, providing the dedicated non-volatile memory component that stores the controller’s program within the older SIMATIC S5 family and enabling maintenance of critical automation logic through power cycles. It offers 4 KB of EPROM storage and supports 4,092 statements, aligning with the S5-110A’s memory and instruction capacity and making it the standard memory option cited in catalogs and repair listings for replacing or upgrading the S5-110A's program memory. Typically used with the S5-110A PLC in legacy SIMATIC S5 systems, the 6ES5910-0AA41 preserves the program across power cycles, supporting continued operation on aging production lines. Also listed under the Siemens part number 6ES5910-0AA41 and alternative 6ES59100AA41, this EPROM memory submodule is commonly available through authorized distributors and repair specialists handling SIMATIC S5 components.