Siemens 6ES5252-3AA13 Closed‑Loop Control Module for SIMATIC S5

Core Precision Control for S5 Systems

The Siemens 6ES5252-3AA13 is an IP252 closed‑loop control module for the SIMATIC S5 programmable logic controller family . This module provides precise analog control for position, pressure, and velocity applications . It features eight analog inputs and outputs with ±10V signal ranges for direct connection to field devices . Consequently, it delivers the advanced regulation needed for demanding process and motion control tasks.

Signal Processing and Integration

This module processes up to eight analog loops simultaneously, enabling complex multi‑variable control strategies. It installs directly into the S5 rack and communicates with the CPU via the backplane bus. The 6ES5252-3AA13 integrates seamlessly with STEP 5 programming software for straightforward configuration and parameterization . Furthermore, its robust design ensures reliable operation in harsh industrial environments.

Technical Specifications and Product Status

Engineers designed this module for the S5‑115U and larger S5 systems. It is now a discontinued product, with the end‑of‑life date reaching April 1, 2012 . The following table details its key functional and physical parameters.

Application in Legacy System Support

Plant engineers use this module for critical closed‑loop tasks on existing S5‑based production lines. It is essential in industries like plastics, metal forming, and chemical processing where precise regulation is required. The Siemens 6ES5252-3AA13 enables continued operation of proven legacy equipment without extensive system redesign. Therefore, sourcing tested and functional units from specialized suppliers is crucial for lifecycle management of classic Siemens automation platforms.