SIEMENS 6ES7953-8LJ30-0AA0 Micro Memory Card

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SIEMENS 6ES7953-8LJ30-0AA0 Micro Memory Card

Product Description

The SIEMENS 6ES7953-8LJ30-0AA0 is a 512KB Micro Memory Card (MMC) designed for SIMATIC S7-300, C7, and ET 200 automation systems. This 3.3V Flash-EPROM card provides non-volatile storage for PLC programs, configuration data, and firmware updates, ensuring data retention even during power loss. It enables program transfer without STEP 7 (TIA Portal), making it ideal for field updates and backup solutions .

Key Features & Advantages

1. Reliable Data Storage

   • 512KB capacity, suitable for small to medium PLC applications .

   • Flash-EPROM technology with 100,000 write/erase cycles and 10-year data retention .

2. Flexible Program Transfer

   • Supports three methods for transferring programs to CPUs:

     • Direct download via SIMATIC Memory Card (SMC) .

     • Transfer via USB stick (files: S7_JOB.SYS and SIMATIC.S7S) .

     • Custom folder download (emulating a card reader) .

   • Enables email-based program sharing for systems without STEP 7 installed .

3. Compatibility & Integration

   • Works with S7-300 CPUs, C7 controllers, and ET 200 distributed I/O .

   • Used for data recipe storage (e.g., in manufacturing processes) without occupying CPU working memory3.

4. Compact & Industrial-Grade Design

   • Dimensions: 24 × 32 × 1.4 mm, weight: ~3g .

   • Durable construction resistant to vibration and shock .

Technical Specifications

Applications

• PLC program backup & restoration .

• Firmware updates for automation systems .

• Data logging and recipe management in manufacturing (e.g., automotive, packaging) .

Installation & Usage Notes

1. Insertion: Carefully align the card with the CPU’s MMC slot to avoid pin damage .

2. Formatting: Use STEP 7 software to format the card if required .

3. Environment: Avoid static discharge and excessive moisture (IP20 rating) .

The structure and details of the product：

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