Siemens 6AV3971-1NA03-0CA0 Memory Submodule

Technical Overview

The Siemens 6AV3971-1NA03-0CA0 is a memory submodule for the SIMATIC S5 programmable controller series. This module stores user programs, configuration data, and system parameters. It provides non-volatile storage without requiring a backup battery. The submodule plugs directly into compatible S5 CPUs or memory expansion slots. It supports the standard STEP 5 programming language. This EPROM-based module ensures reliable program retention during power outages.

Technical Specifications

Parameter	Specification
Manufacturer	Siemens
Model Number	6AV3971-1NA03-0CA0
Product Type	Memory Submodule
System Compatibility	SIMATIC S5 Series
Memory Type	EPROM
Storage Medium	Non-volatile
Programming Language	STEP 5
Installation	Plugs into CPU or memory slot
Country of Origin	Germany

Key Features

Non-Volatile Storage – The EPROM technology retains programs without a backup battery, eliminating maintenance concerns.

S5 Compatibility – This submodule works with various SIMATIC S5 CPUs and memory expansion units.

STEP 5 Support – Users can store standard STEP 5 programs and system configurations.

Plug-and-Play Installation – The submodule inserts directly into the designated slot.

Reliable Data Retention – The module ensures long-term program integrity.

Applications

The Siemens 6AV3971-1NA03-0CA0 suits program storage and system backups in S5-based automation systems. It is ideal for manufacturing, process control, and legacy system maintenance.Siemens memory submodule for SIMATIC S5 PLCs. Non-volatile EPROM storage, STEP 5 compatible.