Siemens 6ES7953-8LF20-0AA0 SIMATIC S7 64KB Micro Memory Card

Conspectus

SIEMENS SIMATIC S7 MMC

6ES7953-8LF20-0AA0 SIMATIC S7 64 KB Micro Memory Card

A 64 KB SIMATIC MMC for compatible controllers and station interfaces, including storage of the PROFINET device name in an IM153-4 PN application.

Ad Primum Aspectum

Nota	Siemens
Modellum	6ES7953-8LF20-0AA0
Typus Producti	Carta Micro Memoriae SIMATIC
Functio principalis	Portable controller and station-data storage
Applicatio	Supported S7-300, C7 and ET 200 applications

Statio identitas

64 KB is sufficient for the IM153-4 PN device name.

Replacement transfer

Move the card to a replacement interface to carry the stored station name.

Firmware capacity

IM153-4 PN firmware transfer requires at least 2 MB, exceeding this card’s capacity.

Product Overview

6ES7953-8LF20-0AA0 provides 64 KB of 3.3 V NFLASH memory for supported SIMATIC S7-300, C7 and ET 200 equipment.

In an IM153-4 PN installation, the card can retain the PROFINET device name and transfer that identity to a replacement interface, while firmware-update storage requires a larger card.

Focus ordinandi: Choose the 64 KB card for its intended program or station-data task and distinguish that task from firmware updates that require a higher memory capacity.

Key Functions

Retain a PROFINET station name

The IM153-4 PN can save its assigned device name on the removable memory card, and 64 KB is sufficient for this information.

Transfer identity during interface replacement

Moving the card from the old IM153-4 PN to a replacement interface lets the station recover its saved device name after a supply cycle.

Separate configuration storage from update media

The IM153-4 PN firmware-update workflow requires a card of at least 2 MB rather than a 64 KB device-name card.

Official Specifications

Capacitas Memoriae	64 KB
Tensio nominalis cartae	3.3 V
Memoria Technologia	NFLASH non volatilis
Durabilitas deletionis/scriptionis	Usque ad 100 000 operationes ad temperaturas ambientales usque ad 60 °C
Card Identification	Numerus serialis internus qui ad protectionem copiae MMC uti potest
Clavis insertionis	Angulus obliquus pro orientatione in receptaculo cartae
Service-Life Reference	10 years at ambient temperatures up to 60 °C and no more than 100,000 delete/write operations

Fons officialis: Instruptiones operationis Siemens ET 200M · Instructiones operationis CPU Siemens IM151-7 · Siemens Product Details

Quaestiones Frequenter Rogatae

Is 6ES7953-8LF20-0AA0 large enough to store an IM153-4 PN device name?

A 64 KB SIMATIC Micro Memory Card is sufficient for saving the device name in this interface application.

Can I use 6ES7953-8LF20-0AA0 to transfer firmware to an IM153-4 PN?

The IM153-4 PN firmware-update procedure requires at least 2 MB of card capacity, so a 64 KB card is too small.

How do I carry the station identity to a replacement IM153-4 PN with 6ES7953-8LF20-0AA0?

Move the device-name card from the old interface to the replacement and cycle the supply so the replacement reads the stored name.

Num 6ES7953-8LF20-0AA0 obligatorius est in omni IM153-4 PN hardware revisione?

IM153-4AA00-0XB0 cardinam requirit pro servato nomine dispositivi, dum revisiones ab IM153-4AA01-0XB0 nomen intra interfaciem retinere possunt.

Num 6ES7953-8LF20-0AA0 in vivo in IM153-4 PN cardinam slotum commutare possum?

IM153-4 PN cardinam tractandi procedura hot-swapping SIMATIC Micro Memory Card suadet.

Quae figura 6ES7953-8LF20-0AA0 ad rectam orientationem in slotu iuvat?

Angulus obliquus impedit ne cardina in falsa orientatione inseratur.

Quae durabilitas ad 6ES7953-8LF20-0AA0 in applicatione IM153-4 PN pertinet?

Referentia vitae operis est decem annis ad temperaturas ambientales usque ad 60 °C cum non plus quam 100 000 operationibus deleti/scrivendi.

Compatibility & Ordering Notes

Antequam 6ES7953-8LF20-0AA0 ordinatur: Specifica exactam LF20 articuli et nomen dispositivi vel oneris memoriae intentionis, et utere maiore cardina supportata si operatio servicii planificata est actualizatio firmware.

List of Compatibility for 6ES7953-8LF20-0AA0

• For an IM153-4 PN application, determine the interface hardware revision, because card requirements differ between revision 4AA00 and later revisions.
• Store and transfer the correct PROFINET device name for the station; the name 'noname' is not allowed in the commissioning workflow.
• Do not use the 64 KB card for the IM153-4 PN firmware update workflow, which requires at least 2 MB.
• After moving a device-name card to a replacement IM153-4 PN, cycle the interface power supply to load the identity.
• Apply hot-swapping only in the documented IM153-4 PN card-handling context; other CPUs have their own removal requirements.

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