Siemens 6ES5375-1LA41 Programmable Logic Controller Module

Siemens 6ES5375-1LA41 is a SIMATIC S5 memory submodule containing a 375 CMOS EPROM with a 32 KB capacity, designed to store the program and data for legacy S5 controllers. This plug‑in memory module is part of the SIMATIC S5 memory subsystem and is specifically identified as a 32 KByte CMOS EPROM memory submodule, commonly listed in catalogs as “Memory Submodule 375 CMOS EPROM, 32 KBytes.” Today it is typically sold as surplus or used equipment, reflecting its status as an obsolete component within modern automation but remaining compatible with older S5 installations that rely on the 6ES5375‑1LA41 module for memory storage. Typical use cases include replacing a failed memory submodule in existing S5 systems, maintaining legacy production lines, or supporting retrofits where the 375 memory bank requires a CMOS EPROM 32 KB module. The part number 6ES5375‑1LA41 uniquely identifies this 32 KB CMOS EPROM memory submodule intended for the SIMATIC S5 architecture, and it appears regularly in supplier listings alongside other 6ES5375 series components.