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Siemens 6ES7953-8LF31-0AA0 SIMATIC S7, Micro Memory Card for S7-300/C7

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Siemens 6ES7953-8LF31-0AA0 SIMATIC S7, Micro Memory Card for S7-300/C7/ET 200

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Siemens 6ES7953-8LF31-0AA0 SIMATIC S7, Micro Memory Card for S7-300/C7/ET 200

Siemens 6ES7953-8LF31-0AA0 SIMATIC S7 Micro Memory Card, 64KB — S7-300/C7/ET 200

Non-volatile program and data storage card for Siemens S7-300 series PLCs

Overview

This is a Siemens SIMATIC S7 Micro Memory Card, 6ES7953-8LF31-0AA0, designed for use with Siemens S7-300, C7, and ET 200 series PLCs. Built on non-volatile NFlash technology, it provides secure storage for control programs, configurations, and data that must survive power loss, plugging directly into a compatible S7-300/C7/ET 200 CPU as the working memory card for program execution.

Key Features

  • Non-volatile storage: NFlash technology retains stored program and data content even when the system is powered off, preventing data loss.
  • Compact 64 KB capacity: Suited to program and data storage requirements of smaller PLC systems such as the S7-300, C7, and ET 200 series.
  • Fast data access: Provides quick read access to stored data, supporting efficient program execution in automation systems.
  • Reliable industrial-grade performance: Built for long-term operation in demanding industrial environments requiring continuous process control.
  • Simple plug-in integration: Inserts directly into the CPU's memory card slot for straightforward loading of programs, configurations, and data.

What's Included

Model Function Qty
6ES7953-8LF31-0AA0 Micro Memory Card, 64KB, S7-300/C7/ET 200 1

Technical Specifications

Voltage: 3.3V NFlash.

Capacity: 64 KB.

Storage type: NFlash (non-volatile flash memory).

Form factor: Micro Memory Card.

Compatibility & Applications

Compatible with Siemens S7-300, C7, and ET 200 PLC systems, this card is used for control program storage, data logging, and system configuration management across industrial automation applications. It also supports backup and restore workflows, allowing PLC program data to be preserved and reloaded in the event of a system failure or controller upgrade.

A1Customer — Industrial Automation Equipment | Tampere, Finland
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