Beckhoff CX5140-0122 CX5100 Series Embedded PC

Engineered for medium-to-high complexity automation tasks, the Beckhoff CX5140-0122 Embedded PC brings quad-core processing power directly to the DIN rail. This controller integrates an Intel Atom E3845 1.91 GHz processor, providing high-speed execution for TwinCAT-based control systems. With native support for both E-bus and K-bus I/O terminals, the unit automatically detects connected modules, facilitating seamless migration and expansion in diverse industrial environments.

Key Technical Features

• Quad-Core Processing: Intel Atom E3845 CPU running at 1.91 GHz for deterministic control loops.
• Dual I/O Interface: Automatic recognition and support for Beckhoff E-bus (EtherCAT) and K-bus (Bus Terminal) systems.
• Integrated 1-Second UPS: Hardware-based persistent memory protection (1 MB on CFast card) to prevent data loss during sudden power failures.
• Robust Connectivity: Dual independent RJ45 Gigabit Ethernet ports, four USB 2.0 ports, and a DVI-I diagnostic interface.
• Passive Thermal Design: Fanless operation across a wide temperature range from -25 to +60 degC.

Industrial Applications

• Machine Tool Control: High-speed PLC and motion control execution via TwinCAT 3.
• Process Automation: Distributed control systems requiring robust communication interfaces and fieldbus integration.
• Infrastructure & Energy: Remote monitoring and control in substations, water treatment plants, and wind turbines.
• Hazardous Environments: Deployable in Zone 2/22 locations when configured with the optional CX2900-0107 thermal/protection package.

Technical Specifications

Alternative Models & Compatibility

The CX5140-0122 is a quad-core alternative to the dual-core CX5130 series. It operates at TwinCAT 3 Platform Level 50 (Performance Plus), meaning any licenses transferred from lower-tier controllers (such as Level 40 Economy Plus units) must be upgraded to match this platform level. It maintains physical and electrical backplane compatibility with existing CX5010 and CX5020 installations, though software configurations must account for the updated Intel Atom E3845 architecture.

Application Pitfalls & Engineering Notes

Thermal Management: Although fanless, the CX5140-0122 relies on natural convection. It must be mounted vertically on a horizontal DIN rail. Maintaining a minimum clearance of 30 mm above and below the unit is mandatory to prevent thermal throttling when operating near the upper limit of 60 degC.
UPS Functionality: The integrated 1-second UPS requires a functional internal capacitive storage system. This UPS is designed solely to write persistent data (up to 1 MB) to the CFast card during a power loss event; it is not a system-level runtime UPS. Ensure the TwinCAT boot project is configured to trigger the write routine on power loss.

Commissioning & Wiring Tips

When wiring the 24 V DC power supply, ensure the supply line is fused externally. The E-bus/K-bus auto-detection occurs during the initial boot phase. If changing terminal types (e.g., swapping K-bus terminals for EtherCAT E-bus terminals), a full system cold restart is required for the controller to re-map the physical backplane interface. Ensure the total current draw of connected terminals does not exceed the 2 A backplane limit; if exceeded, a power supply terminal (e.g., CX2100-0xxx) must be integrated.

Installation Guidelines