Siemens 6ES5375-1LA41 | SIMATIC S5 | 32KB CMOS-EPROM

Product Description

High-Reliability Non-Volatile Memory for SIMATIC S5

The Siemens 6ES5375-1LA41 is a specialized 375-type memory submodule designed for the legacy SIMATIC S5 programmable logic controller series. With a storage capacity of 32 KB, this module utilizes CMOS-EPROM technology to provide a stable, non-volatile environment for industrial user programs and machine configuration data. Its primary engineering purpose is to ensure that critical control logic remains intact during power interruptions or CPU battery failures, eliminating the need for manual program restoration and reducing potential system downtime.

Industrial Endurance and Data Security

As a dedicated hardware component for legacy automation, the 6ES5375-1LA41 is built to withstand the electromagnetic interference and thermal stresses common in industrial control cabinets. As an EPROM-based device, it serves as a secure storage medium; once the program is burned onto the silicon, it is physically protected from accidental software overwrites or corruption due to system bus errors. To modify the stored logic, the module must be physically removed and exposed to an ultraviolet (UV) erasing lamp, followed by reprogramming through a compatible Siemens S5 programming device (PG), providing a "read-only" safety layer for validated production code.

Detailed Technical Specifications

The technical parameters below outline the operational standards for the 6ES5375-1LA41.