Siemens 6ES5102-8MA02 Central Processing Unit

Compact CPU for SIMATIC S5-100U Systems

The 6ES5102-8MA02 central processing unit serves as the core controller for the SIMATIC S5-100U programmable logic controller family. This CPU module handles user program execution and system management tasks. It supports ladder logic and function block diagrams through the STEP 5 programming language. Consequently, this module suits small to medium-scale automation applications.

Technical Specifications

Memory and Program Execution

The 6ES5102-8MA02 integrates memory for program and data storage. It executes the user program cyclically and processes interrupts. The CPU works with standard S5-100U I/O modules. Furthermore, the module provides deterministic control responses for reliable system operation.

System Integration and Connectivity

This CPU connects to the S5-100U backplane bus for communication with I/O modules. It supports connections to programming devices via an integrated port. The 6ES5102-8MA02 also handles real-time clock functions. LED indicators on the front panel display run, stop, and fault status.

Physical Characteristics and Installation

The 6ES5102-8MA02 fits standard S5-100U rack configurations. It occupies one slot in the chassis. The front panel features LED indicators for operational status. The module uses standard S5-100U connectors for field wiring.

Product Status and Support

Siemens has discontinued this CPU as part of the legacy SIMATIC S5 product line. However, users may still find the 6ES5102-8MA02 through distributors. Many suppliers offer refurbished units with warranty coverage. For new installations, Siemens recommends migrating to the S7 platform.