Siemens 6ES7953-8LL31-0AA0 SIMATIC S7 Micro Memory Card (MMC), 2 MB Original Brand New

Overview

The Siemens 6ES7953-8LL31-0AA0 is an essential component for Siemens SIMATIC S7 PLC systems. As a Micro Memory Card (MMC), it provides the necessary non-volatile storage for user programs, project data, and archival information. Engineered for durability in demanding industrial environments, this 2 MB card is the standard storage solution for maintaining system uptime and data integrity.

Key Benefit

• Seamless Compatibility: Specifically engineered for the Siemens S7-300, C7, and ET 200 series.

• High Reliability: Built with 3.3V Nflash technology to ensure long-term data retention without the need for a backup battery.

• Simplified Maintenance: Easily transfer programs between CPUs or replace hardware without needing a PG (Programming Device) in the field.

• Compact Form Factor: Rugged, small-scale design built to withstand industrial vibrations and temperatures.

Function & Application

The primary function of the 6ES7953-8LL31-0AA0 is to store the CPU's load memory. When the PLC boots, the program is loaded from this MMC into the work memory. It is also used for:

• Storing firmware updates for the CPU.

• Saving data blocks and recipe information.

• Data logging for process monitoring.

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Datasheet in PDF

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