Description
Description
The Siemens 6ES5928-3UA11, also known as the CPU 928A, is a high-performance processor module designed for the SIMATIC S5 automation system. Specifically engineered for use within the S5-135U and S5-155U programmable logic controller (PLC) families, this module serves as the central processing unit responsible for executing user programs, managing I/O data, and coordinating communication across the backplane bus. As a legacy component, this unit is essential for maintaining and extending the operational life of existing S5-based industrial control systems.
Features
- Central processing unit for SIMATIC S5-135U and S5-155U systems.
- High-speed instruction processing for complex automation tasks.
- Integrated interface for system-wide data exchange and peripheral management.
- Robust design suitable for demanding industrial environments.
- Direct replacement or spare for legacy S5-155U/135U rack configurations.
Applications
The CPU 928A is primarily utilized in large-scale industrial automation applications where the SIMATIC S5-135U or 155U platforms are deployed. Typical environments include heavy manufacturing, power generation facilities, chemical processing plants, and legacy material handling systems that require high-reliability control logic.
Technical Specifications
| Product Model |
6ES5928-3UA11 |
| Series |
SIMATIC S5 |
| Module Type |
CPU 928A Processor |
| Compatibility |
S5-135U / S5-155U |
| Manufacturer |
Siemens |
| Tariff Code |
8537109060 |
Installation Guidelines
- Ensure the PLC rack power is disconnected before installing or removing the CPU module to prevent electrical damage.
- Handle the module by the edges; avoid touching the backplane connector pins to prevent ESD (Electrostatic Discharge) damage.
- Ensure the module is firmly seated in the designated CPU slot of the S5 rack and secured using the integrated locking mechanisms.
- Verify that the rack ventilation is unobstructed to maintain optimal operating temperatures.
- Ensure all firmware and memory submodules are correctly configured for the specific application before powering up the system.
FAQ
Is this module still supported by the manufacturer?
No, the 6ES5928-3UA11 has been discontinued by Siemens. It is typically sourced as a spare part for the maintenance of legacy SIMATIC S5 systems.
What systems is this CPU compatible with?
This module is specifically designed for the SIMATIC S5-135U and S5-155U programmable controller series.
