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Core Functionality and Application
The Siemens 6ES5375-0LA11 memory submodule stores user programs and system parameters for SIMATIC S5-100U programmable logic controllers. This compact module expands the memory capacity of S5-100U CPUs. It retains critical program code and configuration data even during power interruptions.
Technical Specifications
The following table details the core technical parameters for the Siemens 6ES5375-0LA11:
| Parameter | Specification |
|---|---|
| Model Number | 6ES5375-0LA11 |
| Product Type | Memory Submodule |
| Compatible Systems | SIMATIC S5-100U |
| Memory Capacity | 512 bytes (CMOS RAM) |
| Battery Backup | Yes (lithium battery) |
| Dimensions (W × H × D) | 7.20 × 5.00 × 0.30 cm (2.83 × 1.97 × 0.12 in) |
| Weight | 0.02 kg (0.04 lbs) |
| Operating Temperature | 0°C to 60°C |
| Storage Temperature | -20°C to 70°C |
| Country of Origin | Germany |
| Lifecycle Status | Obsolete |
Design and Functionality
The Siemens 6ES5375-0LA11 features a credit-card-sized form factor that plugs directly into the S5-100U CPU slot . This compact design requires no tools for installation or replacement. The module’s lightweight construction places minimal mechanical stress on the connector. A replaceable lithium battery maintains memory contents during power failures. This battery backup ensures program retention and prevents data loss. The memory capacity of 512 bytes supports small to medium-sized control applications effectively.
System Compatibility
The Siemens 6ES5375-0LA11 specifically serves S5-100U PLC systems. It stores user programs, step tables, bit memories, and system parameters. Users should note that Siemens has discontinued this product without a direct replacement. Availability may be limited to existing stock or the aftermarket.