Siemens 6ES5374-0BA11 Memory Submodule

Product Overview

The Siemens 6ES5374-0BA11 memory submodule provides 2 KB of RAM storage for SIMATIC S5 programmable controllers. This compact plug-in unit expands the program and data memory capacity of compatible CPUs. It fits directly into designated memory slots on S5 processors. The submodule stores user programs, data blocks, and system parameters reliably.

Technical Specifications

Parameter	Specification
Model Number	6ES5374-0BA11
Product Type	Memory Submodule
Brand	Siemens
Category	PLC Memory Modules
Memory Capacity	2 KB (RAM)
Compatibility	SIMATIC S5 Series
Form Factor	Compact plug-in module
Weight	Approximately 0.10 kg
Dimensions	80 mm x 50 mm x 15 mm
Function	Program and data storage
Data Retention	Requires backup battery

Key Features and Benefits

Compact Memory Expansion
The 6ES5374-0BA11 adds valuable storage for user programs and essential data. Its 2 KB capacity supports basic automation logic and parameter sets. This expansion enables more sophisticated control functionality.

Simple Plug-in Installation
This memory submodule features a straightforward plug-in design for quick installation. Technicians can insert or remove the unit without special tools. This simplicity reduces installation time and system downtime.

Reliable Data Storage
The submodule securely holds programs and critical data during normal operation. It relies on a backup battery to retain data during power loss. Users should periodically verify the battery status to prevent data loss.

Application and Use Cases

The Siemens 6ES5374-0BA11 suits basic control applications requiring modest program memory. It also serves as a spare for replacing failed memory units in existing S5 systems. Facilities operating legacy S5 controllers will find this submodule a practical and cost-effective solution.