Siemens 6ES5375-0LD11 | SIMATIC S5 Memory Submodule

The Siemens 6ES5375-0LD11 expands the storage capacity of your PLC. This memory submodule belongs to the SIMATIC S5 controller family. It plugs directly into compatible CPU units. You can use it to store larger user programs and data blocks.

Key Technical Specifications

Below you will find the accurate technical parameters for the Siemens 6ES5375-0LD11.

Parameter	Specification
Product Type	Memory Submodule
Series	SIMATIC S5
Memory Type	EPROM
Storage Capacity	16 KB
Interface	Direct CPU slot
Operating Voltage	5 V DC (from backplane)
Data Retention	Non-volatile (no battery needed)
Manufacturer	Siemens

The submodule measures 45 mm in width and 55 mm in height. Its total depth reaches 12 mm. The Siemens 6ES5375-0LD11 weighs approximately 25 grams. This unit contains a single EPROM chip on a small PCB. Energy storage does not apply to this non-volatile component.

You will find a label area on the top side of the housing. The module uses a zero-insertion-force socket for installation. Consequently, you can swap memory submodules without special tools. The EPROM retains all data after power loss permanently.

Installation and System Integration

You can insert the Siemens 6ES5375-0LD11 into any compatible S5 CPU. The module draws operating power directly from the processor backplane. Therefore, you do not need any external wiring at all. This plug-and-play design makes field upgrades very straightforward.