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Technical specifications for 6ES7952-1AM00-0AA0
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Manufacturer:Siemens
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Product Category:PLC Systems
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Spare Part Number:6ES7952-1AM00-0AA0
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Weight:0.0441 lbs (0.02 kg)
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Tariff Code:8537101190
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Product type:MC 952 memory card
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System:SIMATIC S7-400
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Memory technology:RAM
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Capacity:4 Mbytes
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Design:Long design
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Operating current:45 mA typical; 100 mA maximum at 5 V
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Backup current:5 µA typical; 60 µA maximum
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Storage behavior:RAM retention depends on the host backup arrangement
Information
Overview
Downloads
Applications / Compatibility
Product Precautions
- Siemens 6ES7952-1AM00-0AA0. RAM-card replacement is a memory-retention task as well as a hardware match; keep the application archive and backup-power arrangement together.
Product type: MC 952 memory card
System: SIMATIC S7-400
Memory technology: RAM
Capacity: 4 Mbytes
System: SIMATIC S7-400
Memory technology: RAM
Capacity: 4 Mbytes
The long-design MC 952 card provides 4 Mbytes of RAM for the S7-400 platform. RAM is volatile storage, so its behavior during loss of system power depends on the host backup arrangement. It must not be treated as a nonvolatile Flash card solely because the capacity matches.
For this card the MC 952 technical table gives 45 mA typical and 100 mA maximum operating current at 5 V. Backup current is 5 µA typical and 60 µA maximum. These are card values and must be considered within the installed CPU backup design.
Keep a verified program and data archive before a planned power interruption or card replacement. Check the CPU load-memory requirements separately from its work-memory capacity. Commissioning must confirm the expected application, retained data and diagnostic state with the actual host CPU.
For this card the MC 952 technical table gives 45 mA typical and 100 mA maximum operating current at 5 V. Backup current is 5 µA typical and 60 µA maximum. These are card values and must be considered within the installed CPU backup design.
Keep a verified program and data archive before a planned power interruption or card replacement. Check the CPU load-memory requirements separately from its work-memory capacity. Commissioning must confirm the expected application, retained data and diagnostic state with the actual host CPU.
Controller platform reference: Siemens SIMATIC S7-400.
Technical downloads for Siemens 6ES7952-1AM00-0AA0: a Siemens technical reference and an Apter Power installation and commissioning guide.
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Siemens 6ES7952-1AM00-0AA0 technical reference
Original manufacturer data sheet - PDF, 2 pages. Exact-model technical characteristics and manufacturer product identification. -
Siemens 6ES7952-1AM00-0AA0 installation guide
Prepared by Apter Power - PDF, 5 pages. Installed-system review, configuration checks, commissioning and handover.
The technical reference preserves Siemens technical pages. The installation guide is prepared by Apter Power for planning and verification. Apply the complete Siemens and machine procedures during work.
System context: RAM-card replacement is a memory-retention task as well as a hardware match; keep the application archive and backup-power arrangement together.
Configuration scope: Technical values apply to the complete 6ES7952-1AM00-0AA0 execution. The card current values use the exact MC 952 order-number entry in the S7-400 CPU specifications.
Configuration scope: Technical values apply to the complete 6ES7952-1AM00-0AA0 execution. The card current values use the exact MC 952 order-number entry in the S7-400 CPU specifications.
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RAM load-memory expansion
Use this RAM card within a supported S7-400 load-memory configuration. Confirm the long-design card identity and the actual CPU support before installation. -
Retention-power assessment
Include the memory card in the installed CPU backup calculation. Retention during supply interruption depends on the complete host backup arrangement. -
Application recovery planning
Keep an independent application archive when preparing RAM-card replacement. Verify the restored program, retained data and diagnostics before returning the controller to service. -
Host memory coordination
Review card load memory and CPU work memory as separate resources. Match the application requirements to the installed CPU configuration and supported card capacity.
Apply the approved SIMATIC S7-400 maintenance procedure and verify the following model-specific conditions before release.
Protect RAM retention
This MC 952 card uses RAM. Retention through a supply interruption depends on the actual host backup arrangement.
Verify the host CPU
The complete order number identifies a long-design 4 Mbyte RAM card for the SIMATIC S7-400 family. Verify support for the actual CPU.
Budget operating current
At 5 V the card draws 45 mA typically, with a maximum of 100 mA.
Check backup demand
The technical table specifies 5 µA typical and 60 µA maximum. Include the card in the host backup-current calculation.
Retain a safe application archive
RAM requires retention power. Record the installed CPU backup method and maintain an independent application archive before power interruption or replacement.
Keep card and CPU memory distinct
The 4 Mbyte value describes the card capacity. CPU work-memory partitions and supported load-memory configuration are separate specifications.
Alternative Names
6ES79521AM000AA0
Siemens 6ES7952-1AM00-0AA0
Technical notes
System relationship: RAM-card replacement is a memory-retention task as well as a hardware match; keep the application archive and backup-power arrangement together.
Configuration boundary: No. This card is RAM. A Flash EPROM card has different retention and program-storage behavior, even where the nominal capacity is the same.
Technical reference: Siemens 6ES7952-1AM00-0AA0 Data Sheet; S7-400 Automation System CPU Specifications, A5E00267840-03. Technical values apply to the complete 6ES7952-1AM00-0AA0 execution. The card current values use the exact MC 952 order-number entry in the S7-400 CPU specifications.
FAQ View All FAQ
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Is the storage in 6ES7952-1AM00-0AA0 volatile?Yes. This MC 952 card uses RAM. Retention through a supply interruption depends on the actual host backup arrangement.
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Which controller family uses 6ES7952-1AM00-0AA0?The complete order number identifies a long-design 4 Mbyte RAM card for the SIMATIC S7-400 family. Verify support for the actual CPU.
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What is the operating-current budget for 6ES7952-1AM00-0AA0?At 5 V the card draws 45 mA typically, with a maximum of 100 mA.
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How much backup current is specified for 6ES7952-1AM00-0AA0?The technical table specifies 5 µA typical and 60 µA maximum. Include the card in the host backup-current calculation.
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Why should the backup arrangement be checked with 6ES7952-1AM00-0AA0?RAM requires retention power. Record the installed CPU backup method and maintain an independent application archive before power interruption or replacement.
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Does the 4 Mbyte rating of 6ES7952-1AM00-0AA0 describe CPU working memory?No. It describes the card capacity. The CPU work-memory partitions and supported load-memory configuration are separate specifications.
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What must be checked after loading 6ES7952-1AM00-0AA0?Confirm that the intended program and data are present, the hardware configuration matches the installed controller and diagnostics allow the planned startup.
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Is 6ES7952-1AM00-0AA0 the same storage execution as a Flash EPROM card?No. This card is RAM. A Flash EPROM card has different retention and program-storage behavior, even where the nominal capacity is the same.
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