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Technical specifications for 6ES7953-8LL31-0AA0
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Manufacturer:Siemens
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Product Category:PLC Systems
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Spare Part Number:6ES7953-8LL31-0AA0
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Estimated shipping dimensions:2.3×3.1×0.2cm
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Weight:0.01 kg
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Tariff Code:8537101190
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Counliy of origin:Germany
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Memory family:SIMATIC S7 Micro Memory Card
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Memory technology:Nflash
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Operating interface:3.3 V
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Program-memory capacity:2 MB
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Supported controller family:SIMATIC S7-300
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Supported compact system:SIMATIC C7
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Supported distributed CPU family:Compatible ET 200 CPUs
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Retention type:Nonvolatile removable program memory
Information
Overview
Manuals
Common Applications
Product Precautions
Siemens 6ES7953-8LL31-0AA0 retains the program and configuration that a compatible SIMATIC CPU uses at start-up, providing a removable 2 MB nonvolatile memory medium.
- Provides 2 MB of program-memory capacity.
- Uses 3.3 V Nflash memory technology.
- Supports compatible SIMATIC S7-300 and C7 systems.
- Can serve supported ET 200 CPU configurations.
The card contents are machine-specific. Two cards with the same capacity are not interchangeable unless their project, CPU support and controlled revision also match.
Important Notice: Create a verified backup before removal, then confirm card recognition, CPU start-up and the loaded program version after installation.
Technical documents for Siemens 6ES7953-8LL31-0AA0
Siemens 6ES7953-8LL31-0AA0 Official Data Sheet (PDF)Installation and Commissioning — Siemens 6ES7953-8LL31-0AA0The technical reference, installation and commissioning guide, and complete product information PDF cover different scopes for this exact model.
S7-300 program storage
Retain the approved CPU program and system data.
C7 configuration media
Provide removable nonvolatile memory for a compatible compact system.
ET 200 CPU start-up
Supply the required project to a supported distributed CPU.
Controlled spare preparation
Store a verified machine-specific backup on an identified card.
Protect both the Nflash medium and the machine-specific project stored on Siemens 6ES7953-8LL31-0AA0.
1
Create and verify a complete backup before removing the installed card.
2
Record the CPU type, firmware and project revision associated with the card.
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Remove or insert the card only under the approved CPU service condition.
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Protect the contacts from contamination, static discharge and mechanical damage.
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Do not overwrite a card until its original contents are archived.
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Confirm 2 MB capacity and CPU support before copying the project.
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Compare blocks and system data with the controlled engineering source.
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Verify start-up, diagnostics and I/O response after the card is recognized.
Technical notes
Treat the memory card and its stored project as separate acceptance items. Physical recognition does not prove that the correct application or system data has been loaded.
FAQ View All FAQ
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How much program memory does Siemens 6ES7953-8LL31-0AA0 provide?It provides 2 MB of nonvolatile program-memory capacity.
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Which memory technology is used by Siemens 6ES7953-8LL31-0AA0?The card uses 3.3 V Nflash technology for compatible SIMATIC CPU interfaces.
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Which controller families accept Siemens 6ES7953-8LL31-0AA0?It is specified for supported SIMATIC S7-300, C7 and ET 200 CPU applications; the exact CPU release must still be checked.
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Can an empty Siemens 6ES7953-8LL31-0AA0 start the machine automatically?No. The card must contain the approved program and hardware configuration required by the intended CPU.
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Why should Siemens 6ES7953-8LL31-0AA0 be backed up before replacement?The card may hold the only controlled copy of the CPU program, system data and project-specific start-up information.
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Can another 2 MB card replace Siemens 6ES7953-8LL31-0AA0 without checking its contents?No. Matching capacity does not establish the correct project, CPU compatibility or revision; validate both the medium and its stored data.
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What should be compared after copying Siemens 6ES7953-8LL31-0AA0?Compare the program blocks, system data, hardware configuration and project revision with the controlled engineering backup.
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How is Siemens 6ES7953-8LL31-0AA0 accepted in a CPU?Confirm card recognition, CPU start-up mode, diagnostic state, program version, I/O configuration and a controlled functional response before release.
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