Overview
The 6ES7953-8LP31-0AA0 is a Siemens SIMATIC S7 Micro Memory Card, an 8 Mbyte Flash-EPROM module operating at 3 V, designed for use with C7 and ET 200 systems. This memory card has been officially phased out by Siemens as of October 1, 2023, making it a discontinued item that must now be sourced through surplus or broker channels.
The card stores the PLC program and data in non-volatile Flash-EPROM, rated for a minimum of 100,000 write/delete cycles and a data retention period of at least 10 years after the final programming action. With 8 Mbyte capacity, this card holds logic and data blocks. The 3 V operating voltage is specific to the SIMATIC S7 memory interface; verify compatibility with the target CPU before ordering.
Applications
This Micro Memory Card is used in Siemens C7 and ET 200 programmable controllers to load and store the user program, configuration data, and recipe parameters. It is a standard accessory for field upgrades, program transfers, and backup storage in industrial automation systems.
