SIEMENS 6ES7954-8LC04-0AA0 SIMATIC Memory Card

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                                                                                                                                                                                                                              • The SIEMENS 6ES7954-8LC04-0AA0 is a SIMATIC S7 Memory Card, featuring 4 MB Flash-EPROM memory. It is designed for SIMATIC S7-1200/S7-1500 CPU and SINAMICS applications. Siemens currently lists this exact part number as an active product.

                                                                                                                                                                                                                                Key Technical Specifications

                                                                                                                                                                                                                                Specification	Details
                                                                                                                                                                                                                                Manufacturer	SIEMENS
                                                                                                                                                                                                                                Model	6ES7954-8LC04-0AA0
                                                                                                                                                                                                                                Product Type	SIMATIC Memory Card
                                                                                                                                                                                                                                Memory Type	Flash-EPROM
                                                                                                                                                                                                                                Memory Capacity	4 MB
                                                                                                                                                                                                                                Application	S7-1x00 CPU / SINAMICS
                                                                                                                                                                                                                                Card Dimensions	24 × 32 × 2.1 mm
                                                                                                                                                                                                                                Write/Delete Cycles	Min. 500,000
                                                                                                                                                                                                                                Data Retention	Up to 10 years*
                                                                                                                                                                                                                                Net Weight	Approx. 3 g
                                                                                                                                                                                                                                Product Status	Active

                                                                                                                                                                                                                                *Data retention depends on the number of write/delete operations. Siemens specifies at least 10 years under lower write-cycle conditions.

                                                                                                                                                                                                                                Advantages & Features

                                                                                                                                                                                                                                • Original Siemens SIMATIC memory card
                                                                                                                                                                                                                                • 4 MB Flash-EPROM storage
                                                                                                                                                                                                                                • Designed for Siemens S7-1x00 CPUs and SINAMICS systems
                                                                                                                                                                                                                                • Compact and lightweight
                                                                                                                                                                                                                                • High write/delete endurance
                                                                                                                                                                                                                                • Suitable for PLC program and data storage
                                                                                                                                                                                                                                • Official successor to the previous 6ES7954-8LC03-0AA0 version.

                                                                                                                                                                                                                                Typical Applications

                                                                                                                                                                                                                                • SIMATIC S7-1200 PLC systems
                                                                                                                                                                                                                                • SIMATIC S7-1500 PLC systems
                                                                                                                                                                                                                                • SINAMICS drive systems
                                                                                                                                                                                                                                • PLC program storage
                                                                                                                                                                                                                                • CPU configuration and data management
                                                                                                                                                                                                                                • Industrial automation and control systems

                                                                                                                                                                                                                                Installation & Usage Notes

                                                                                                                                                                                                                                • Use only with compatible Siemens SIMATIC/SINAMICS equipment.
                                                                                                                                                                                                                                • Do not remove the memory card while the CPU is performing a write operation.
                                                                                                                                                                                                                                • Back up important programs and configuration data before replacing the card.
                                                                                                                                                                                                                                • Verify CPU compatibility and required memory capacity before installation.
                                                                                                                                                                                                                              •  

.The structure and details of the product：

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