Siemens Industry Online Support
Siemens AG
Entry type: Product note Entry ID: 50025619, Entry date: 06/06/2011

Delivery Release for New 512-kB SIMATIC Micro Memory Card

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For manufacturing reasons the 512-kB SIMATIC Micro Memory Card has been given a new order no.. The 512-kB SIMATIC Micro Memory Card with new order no. is spare part compatible with the predecessor version and has been released for immediate delivery.

 Ordering information

Product Name New Order No. Old Order No.
Micro Memory Card 512 kB 6ES7953-8LJ30-0AA0 6ES7953-8LJ20-0AA0

The other SIMATIC Micro Memory Cards with 64 kB, 128 kB, 2 MB, 4 MB and 8 MB will remain unchanged for the time being.


The new 512-kB SIMATIC Micro Memory Card is functionally and spare part compatible with the predecessor version and will replace the latter. As soon as stocks of the 512-kB SIMATIC MMC with order no. 6ES7953-8LJ20-0AA0 are depleted, incoming orders will automatically be switched to the new order no. 6ES7953-8LJ30-0AA0. The predecessor SIMATIC MMC will then cease to be available.

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