Siemens SIMATIC S7 Micro Memory Card 8MB Nflash

Technical Overview

8MB Flash-EPROM micro memory card for SIMATIC S7-300/C7/ET 200, featuring 3.3V Nflash technology and 10-year data retention.

Key Features

Designed for SIMATIC S7-300, C7, and ET 200 series PLCs and automation devices.
Flash-EPROM memory type for reliable and non-volatile data storage.
8 Mbyte (8 MB) storage capacity.
Minimum 100,000 write/delete operations.
Data retention for a minimum of 10 years after final programming.
Supports storing user program blocks, firmware updates, and configuration data.
Enables offline backup and restore of CPU memory.
Compact design for easy installation and replacement.
Engineered for exclusive use within SIMATIC S7-300/400, C7, and ET 200 ecosystems.
Uses 3.3V Nflash technology.

Technical Specification Matrix

Parameter	Value
Memory Type	Flash-EPROM
Memory Size	8 Mbyte (8 MB)
Number of Write/Delete Operations (min)	100,000
Data Retention (after final programming action, min)	10 years
Voltage	3.3V Nflash
Physical Weight (kg)	0.029
Dimensions L x W x H (cm)	11.5 x 9.2 x 0.32

Industrial Applications

1. PLC Program and Data Storage for Factory Automation

This memory card is ideal for storing the operating programs, configuration data, and essential production parameters within SIMATIC S7-300 PLCs controlling factory automation lines. Its 8 MB Flash-EPROM memory, combined with 10-year data retention and 100,000 write cycles, ensures the persistence and integrity of critical control logic and process variables.

Problem Solved

Ensures reliable, non-volatile storage of PLC programs and operational data, preventing loss during power cycles or system restarts in dynamic industrial environments.

PLC programmingdata loggingautomation controlfactory operationsnon-volatile memory

2. Firmware Updates and System Recovery in Distributed I/O Systems

The 6ES7953-8LP31-0AA0 can be used to store firmware updates and facilitate rapid system recovery for Siemens ET 200 distributed I/O systems. Its compact 3.3V Nflash design allows for easy hot-swapping (after power cycle) to quickly restore or upgrade operational software in remote I/O units, minimizing downtime.

Problem Solved

Provides a quick and robust mechanism for deploying firmware updates and enabling swift system recovery, essential for maintaining continuous operation and reducing maintenance windows in distributed control architectures.

Firmware managementsystem backupdisaster recoverydistributed I/Oindustrial network resilience

3. Mobile/Compact Machine Control Data Archiving

Given its small physical dimensions (2.4 cm x 3.2 cm x 0.14 cm) and robust Flash-EPROM technology, this memory card is well-suited for archiving control logic and operational data in compact or mobile industrial machinery equipped with S7-300 or C7 controllers. The 8 MB capacity is sufficient for smaller, dedicated applications where space is limited but data integrity for programs is crucial.

Problem Solved

Offers a durable, compact, and reliable storage solution for machine control programs and configurations in space-constrained industrial equipment, ensuring operational consistency and simplifying field maintenance.

Compact machinerymobile automationembedded controldata archivingrugged storage