Siemens 6ES5374-2FL21 Memory Card

Reliable Program Storage for SIMATIC S5 Systems

The 6ES5374-2FL21 memory card provides secure program and data storage for SIMATIC S5 programmable controllers. This EPROM submodule plugs directly into the CPU module for easy installation. It retains stored data without requiring a backup battery. Consequently, this card ensures program integrity even during prolonged power outages.

Storage Capacity and Compatibility

The 6ES5374-2FL21 offers a storage capacity of 64 KB, providing ample space for control programs . It serves as a reliable alternative to the earlier 6ES5374-2FJ21 model. This memory card fits S5-115U, S5-135U, and S5-155U CPU modules . Furthermore, this card supports firmware updates for feature enhancements .

Durable Construction and Longevity

This memory card features robust EPROM technology for extended operational lifespan. It handles frequent program changes and repeated write cycles without degradation . The card also stores safely across a wide temperature range. Consequently, this module provides dependable program retention for years of service .

Technical Specifications