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SIMATIC S7 Micro Memory Card, 3.3 V Nflash, 2 MB

6ES7953-8LL31-0AA0

Product Information:

Siemens 6ES7953-8LL31-0AA0 is a 3.3 V Nflash SIMATIC Micro Memory Card with 2 MB capacity for documented S7-300, C7 and ET 200 CPU applications.

  • One-year warranty
  • Global shipping
  • Exact-model verification
    • PRODUCT OVERVIEW

      What is this product?

      Siemens 6ES7953-8LL31-0AA0 is a 3.3 V Nflash SIMATIC Micro Memory Card with 2 MB capacity for documented S7-300, C7 and ET 200 CPU applications.

      Source boundary

      Siemens SiePortal product data controls the article identity, 2 MB capacity, 3.3 V Nflash technology and supported SIMATIC families.
    • APPLICATIONS

      Where it may be used

      The memory card stores controlled controller data in supported SIMATIC systems; CPU family, firmware, project and approved backup procedure must match.

      Automotive manufacturing

      Preserves approved PLC projects used on assembly, welding and material-transfer equipment.

      Packaging operations

      Supports controller backup and recovery on packaging, labeling and conveyor systems.

      Food and beverage plants

      Maintains validated automation projects for processing, filling and utility systems.

      Water and process industries

      Supports controlled CPU recovery for treatment, pumping and process-control installations.
Technical specifications for

6ES7953-8LL31-0AA0

0 TECHNICAL PARAMETERS
  • Manufacturer:
    Siemens
  • Product Category:
    PLC and Machine Control
  • Product Family:
    SIMATIC S7 Micro Memory Card
  • Device Type:
    PLC program memory card
  • Operating Voltage:
    3.3 V
  • Memory Technology:
    Nflash
  • Memory Capacity:
    2 MB
  • Write / Delete Cycles:
    At least 100,000
  • Compatible Systems:
    Documented S7-300, C7 and ET 200 CPUs
  • Stock Availability:
    2
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  • 01

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  • 02

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  • 03

    Review the quotation

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  • 04

    Confirm the order

    Accept the quotation in writing and complete the required payment before shipment.
  • 05

    Pay by bank transfer

    Pay the full invoiced amount by bank wire in RMB/CNY, GBP, EUR or USD using the official invoice details.
  • 06

    Verify and dispatch

    The item receives a pre-shipment inspection and suitable protective packaging. Functional testing is performed only where appropriate equipment and procedures are available for the specific item. We confirm the applicable inspection scope and provide tracking after dispatch.
BUYER INFORMATION

Product condition level information

Commercial details are confirmed in writing before payment.
  • 01

    Factory Sealed

    Unused product with the original factory seal intact; packaging age or storage marks may still be present.

  • 02

    Original Pack

    Unused product in original manufacturer packaging that was not originally factory sealed.

  • 03

    Factory New

    New and current product sourced through the manufacturer or authorized supply channel when expressly confirmed in the quotation.

Alternative Names

6ES79538LL310AA0 SIMATIC S7 Micro Memory Card 2 MB

Information

Overview Manuals Capacity and Card Identity CPU and Project Compatibility Backup and Startup Control

Features:

  • 2 MB Nflash program memory for documented SIMATIC controllers.
  • 3.3 V Micro Memory Card execution.
  • Supports approved S7-300, C7 and ET 200 CPU applications.

The complete article number and 2 MB capacity must match the receiving CPU and controlled project. Never initialize, overwrite or exchange a memory card without an approved backup and recovery plan.

Record the card label, CPU article and firmware, STEP 7 project version, hardware configuration, protection settings and current diagnostic state. Validate the backup offline, insert the card with power removed where required and test the complete startup sequence.

The 6ES7953-8LL31-0AA0 Siemens SIMATIC S7 2 MB Micro Memory Card is listed as Active / Available from OEM. Current revision, availability and supplied scope are confirmed in the written quotation.
Siemens 6ES7953-8LL31-0AA0 documentation and reference links.Important Notice: Confirm the complete order identity, hardware execution, receiving-system configuration and required document revision before replacement.

6ES7953-8LL31-0AA0 is the 2 MB, 3.3 V Nflash Micro Memory Card execution. Match the complete article and capacity before use.

Confirm the S7-300, C7 or ET 200 CPU article, firmware, supported card size and STEP 7 project before transferring any data.

Create and validate the controlled backup, preserve write protection and version records, then verify CPU startup and diagnostics after insertion.

Technical notes

Before replacement, record the full card and CPU labels, firmware, STEP 7 project version, hardware configuration, protection settings and diagnostics. Validate the backup before handling the card and verify the complete CPU startup and every affected control function afterward.

Nflash Capacity and Endurance

Siemens identifies 6ES7953-8LL31-0AA0 as a 3.3 V Nflash Micro Memory Card with 2 MB capacity. The documented memory technology supports at least 100,000 write or delete cycles.

CPU Project and Data Retention

The card is used with documented S7-300, C7 and ET 200 CPUs. Confirm CPU firmware and project compatibility, preserve the validated backup and treat the card contents as controlled machine software.

Customs & shipping dimensions / weight

  • Packed shipping dimensions
    Confirmed after final packing
    Exact packed dimensions are stated in the written quotation.
  • Packed shipping weight
    Confirmed after final packing
    Exact packed weight is stated in the written quotation.
  • HS / customs code
    Confirmed before shipment
    Final classification depends on destination, configuration and invoice documents.
  • Country of origin
    Confirmed from the item label or certificate
    Exact origin is stated in the written quotation.
  • Ships from
    Xiamen, Fujian, China
    Dispatch location is confirmed in the written quotation.
  • Customs documents
    Confirmed for the destination
    Available document scope is stated in the written quotation.
PRODUCT & ORDER FAQS

Questions buyers ask about 6ES7953-8LL31-0AA0

  • Which exact hardware execution does 6ES7953-8LL31-0AA0 identify?

    It identifies the 3.3 V Nflash SIMATIC Micro Memory Card with 2 MB capacity.
  • Which installed system must match 6ES7953-8LL31-0AA0?

    Match the documented S7-300, C7 or ET 200 CPU, supported capacity, firmware, STEP 7 project and startup procedure.
  • Which ratings must be checked before ordering 6ES7953-8LL31-0AA0?

    Confirm 3.3 V card technology, 2 MB capacity, write protection, cycle limits, data-retention requirements and CPU support.
  • What should be recorded before removing 6ES7953-8LL31-0AA0?

    Record the card and CPU labels, firmware, project version, hardware configuration, protection state, diagnostics and validated backup checksum.
  • Can another family suffix replace 6ES7953-8LL31-0AA0?

    No automatic substitution is asserted. Compare card capacity, memory technology, voltage, CPU firmware support, project size and required startup data.
  • How should 6ES7953-8LL31-0AA0 be installed?

    Follow the CPU manual, protect the validated backup, remove power where required and insert only the exact approved card.
  • How should 6ES7953-8LL31-0AA0 be commissioned?

    Verify CPU startup, RUN state, project version, retentive data, diagnostics, communications, I/O and all affected functions.
  • Which details are needed for a firm 6ES7953-8LL31-0AA0 quotation?

    Provide quantity, complete label and revision photographs, required condition, receiving-system details, destination and required delivery date.
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WHY BUYERS WORK WITH MOORE AUTOMATED

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  • Pre-shipment inspection

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  • Documentation available

    Product photos, packaging photos, certificates and datasheets can be provided when available.
  • Clear commercial terms

    Condition, warranty, lead time, included items and shipping terms are stated clearly in writing.
  • 20+ years of experience

    Over 20 years of experience in industrial automation and hard-to-source legacy parts.
  • Product Lifecycle Stage

    Active / Available from OEM

    Siemens lists 6ES7953-8LL31-0AA0 as PM400 Product available with phase-out started. Confirm the complete article and revision, receiving-system compatibility, condition, availability and included items in the written quotation.

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Moore Disclaimer: Moore Automated's sales automation equipment and related solutions are intended for industrial automation and business operational efficiency improvement purposes only. Product information, technical parameters, and application cases are for reference only and do not constitute an absolute guarantee of performance for any specific industry, scenario, or final application. Actual equipment performance may vary depending on factors such as the usage environment, system integration method, and maintenance conditions. Users should confirm compatibility and safety based on professional technical assessments. Moore Automated assumes no liability for any direct or indirect losses caused by improper use, modification, or failure to operate according to specifications, to the extent permitted by law.

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