Siemens 6ES7953-8LG30-0AA0 Micro Memory Card

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6ES7953-8LG30-0AA0 Specifications

6ES7953-8LG30-0AA0Description

The 6ES7953-8LG30-0AA0 is a 128 KB Micro Memory Card (MMC) for Siemens SIMATIC S7-300, C7, and ET 200 systems. It serves as the non-volatile load memory for the CPU, storing the user program, hardware configuration, and system parameters.

Using Flash-EPROM technology, it retains data permanently without a backup battery. Most S7-300 CPUs require this card to operate, as they have no internal load memory.

With a minimum of 100,000 write/delete cycles and 10 years of data retention, it offers reliable, long-term storage for smaller to medium-sized automation applications. It supports program storage, firmware updates, and data transfer without a permanent connection to a programming device.

6ES7953-8LG30-0AA0Alternative names

6ES7953-8LG30-0AA0FAQ

What is the 6ES7953-8LG30-0AA0?

The 6ES7953-8LG30-0AA0 is a Micro Memory Card (MMC) for Siemens SIMATIC S7-300, C7, and ET 200 systems. It serves as the load memory and non-volatile data storage for the CPU, storing the user program, configuration data, and system parameters.

What does the part number 6ES7953-8LG30-0AA0 signify?

The part number breaks down as follows:
6ES7: SIMATIC S7 series
953: Micro Memory Card family
8LG30: Specific model with 128 KB memory capacity
0AA0: Standard version

How many times can I write to or delete data from this 6ES7953-8LG30-0AA0 card?

The Flash-EPROM memory supports a minimum of 100,000 write/delete operations , ensuring long service life under normal usage conditions.

What is the memory technology used in this 6ES7953-8LG30-0AA0 card?

The card uses Flash-EPROM (3.3V Nflash) technology, which is non-volatile and does not require a backup battery to retain stored data.

Can this 6ES7953-8LG30-0AA0 memory card be used with S7-400 systems?

No. The 6ES7953 series Micro Memory Cards are designed specifically for S7-300, C7, and ET 200 systems. S7-400 systems use a different type of memory card (typically larger format or RAM with backup battery).