Siemens 6ES5944-7UA12 CPU 944 Processor Module

Core Processing Power for S5-115U Systems

The Siemens 6ES5944-7UA12 is a processor module, also known as the CPU 944, for the SIMATIC S5-115U programmable logic controller . This module serves as the computational core of the automation system, executing user programs and processing I/O signals for medium-performance control applications . Consequently, it provides reliable processing capabilities for industrial automation tasks.

Memory Capacity and Communication Interface

This CPU module features 96 KB of built-in memory for storing and executing control logic . It includes one integrated communication port for connecting to programming devices or operator panels . The 6ES5944-7UA12 mounts directly into the S5-115U rack and connects via the backplane bus . Furthermore, its modular design allows for flexible system configurations.

Technical Specifications and Hardware Details

Engineers designed this module for reliable operation within the S5-115U system’s environmental specifications. The table below details its key functional and physical parameters.

Parameter	Specification
Manufacturer / Series	Siemens / SIMATIC S5-115U
Product Model	6ES5944-7UA12
Module Type	CPU 944 Processor Module
Memory Capacity	96 KB
Communication Ports	1
Dimensions	approx. 20 cm x 33 cm x 5 cm (8″ x 13″ x 2″)
Weight	approx. 0.9 kg (2 lbs 1 oz)

Application in Legacy S5 Systems

Plant engineers use this processor module to maintain and support existing S5-115U-based automation systems . The robust S5-115U platform has been widely applied in chemical processing, manufacturing, and material handling . The Siemens 6ES5944-7UA12 enables continued operation of proven legacy equipment. Therefore, sourcing tested and functional units is crucial for lifecycle management of older Siemens automation platforms .