NEW 6ES7953-8LJ31-0AA0
NEW 6ES7953-8LJ31-0AA0 原价为:$80.00。当前价格为:$75.00。
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NEW 6ES7953-8LP31-0AA0
NEW 6ES7953-8LP31-0AA0 原价为:$217.00。当前价格为:$204.00。

NEW 6ES7953-8LL31-0AA0

原价为:$101.00。当前价格为:$95.00。

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Additional information
Weight 0.29 kg
Dimensions 12 × 15 × 8 cm
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Description

The 6ES7953-8LL31-0AA0 is a SIMATIC Micro Memory Card (MMC) from Siemens, designed specifically as a non-volatile storage solution for SIMATIC S7-300 and S7-400 series programmable logic controllers (PLCs). It plays a critical role in storing essential data required for the operation of these industrial controllers, ensuring reliable execution of automation tasks.

Key Specifications & Features:

  • Storage Capacity: Offers 128 MB of flash memory, providing generous space for large user programs, complex configuration data (including hardware settings, network parameters, and process variables), as well as auxiliary files needed for advanced industrial automation applications.
  • Core Function: Serves as the primary storage medium for S7-300/S7-400 CPUs, which lack built-in program memory. During startup, the CPU reads its operating program, system configurations, and data blocks directly from the MMC, enabling consistent operation and preserving data even when power is disconnected.
  • Compatibility: Engineered for seamless integration with SIMATIC S7-300 CPUs (e.g., models 312, 314, 315, 317) and selected S7-400 CPUs, aligning with their programming and operational requirements.
  • Industrial-Grade Durability: Built to withstand harsh industrial environments, with resistance to vibration, shock, and electromagnetic interference (EMC) in compliance with international standards (such as IEC 61131-2). It operates reliably within a temperature range of -25°C to +70°C, making it suitable for demanding industrial settings.
  • Data Integrity: Utilizes robust flash memory technology to ensure long-term data retention (typically up to 10 years without power) and supports numerous read/write cycles, ensuring durability in continuous operation.
  • User-Friendly Design: Features a compact form factor for easy insertion and removal from the CPU’s memory card slot. It integrates with Siemens TIA Portal (STEP 7) software, allowing engineers to efficiently transfer, update, or back up controller data.

Applications:

Essential for S7-300/S7-400-based automation systems across industries such as manufacturing, machinery, process control (chemicals, pharmaceuticals), and logistics. It enables the storage and execution of large or complex control programs, supporting tasks from intricate machine coordination to multi-stage process regulation, and ensures easy maintenance of PLC-based systems.

 

In summary, the 6ES7953-8LL31-0AA0 is a high-reliability 128 MB MMC card, critical for enabling advanced program storage and reliable operation of SIMATIC S7-300/S7-400 CPUs in industrial automation environments.