Siemens 6FX1128-4BA10HW Memory Module

Siemens 6FX1128-4BA10HW Memory Module is a 256 KB EPROM-based memory module designed for SINUMERIK 800 CNC controls, providing non-volatile storage for memory pages and firmware data used by the CNC CPU. The 6FX1128-4BA10HW designation identifies the hardware configuration used in E Stand A equipment, and this variant is commonly described in SINUMERIK memory documentation as an EPROM module with 256 KB capacity. In typical SINUMERIK 800 deployments, it stores memory pages, program data, and configuration parameters that the controller loads during boot and operation, enabling reliable program execution even after power cycles. This module is intended as a replacement or upgrade for legacy SINUMERIK 800 memory assemblies, and compatibility is tied to the controller revision and memory map of the SINUMERIK 800 family, so it’s important to confirm your system’s hardware version before ordering. By maintaining a dedicated, non-volatile store for essential CNC data, the 6FX1128-4BA10HW helps ensure stable access to CNC programs, tool data, and parameter information required for consistent machining results in routine production environments.