Beckhoff CX1020-0123 CX Series Basic CPU Module

Description

Executing complex automation tasks requiring dedicated industrial performance, the Beckhoff CX1020-0123 acts as the central execution engine of the modular CX control system. Driven by an Intel Celeron M ULV processor operating at a stable 1 GHz clock frequency, this embedded controller delivers high-speed deterministic control and connectivity in a compact, DIN-rail mounted footprint. The unit is optimized for integrated PC-based control, featuring an execution architecture designed directly for TwinCAT 2 NC I environments. Complete with dual Ethernet RJ45 ports and modular expansion interfaces, this Basic CPU Module ensures seamless integration with standard Beckhoff I/O terminals and power delivery units.

Features

• Intel Celeron M Processor: Ultra-Low Voltage (ULV) processor architecture running at 1 GHz for fanless, energy-efficient operation.
• Modular Memory Configuration: Features 256 MB of high-speed DDR RAM alongside a dedicated external Compact Flash Type I+II slot with eject mechanism.
• Dual Ethernet Routing: Outfitted with 2 x RJ45 10/100 Mbit/s ports connected via an internal switch for linear or star physical network topologies.
• TwinCAT Integration: Factory pre-installed with Windows Embedded Standard 2009 supporting the TwinCAT 2 NC I runtime for coordinated point-to-point motion execution.
• Flexible I/O Interface: Connects to Beckhoff E-bus or K-bus I/O systems dynamically through compatible CX1100-xxxx series power supply modules.

Applications

• Multi-axis coordinated motion control and packaging machinery.
• Centralized plant automation systems requiring deterministic EtherCAT execution.
• Embedded visualization, human-machine interface (HMI), and data gateway applications.
• Test benches and laboratory automation setups requiring sub-millisecond task times.

Technical Specifications

Connections and Interfaces

Alternative Models & Compatibility

The CX1020-0123 CPU module requires a corresponding power supply module from the CX1100 series (e.g., CX1100-0001 for K-bus or CX1100-0003 for E-bus/EtherCAT terminals) for direct bus communication. Replacing older, non-switch Ethernet CX series models requires updating system configurations within TwinCAT. Note that the memory options (256 MB vs. 1 GB) and OS variant (Windows Embedded Standard 2009 vs. Windows CE) must be matched carefully if migrating existing control programs to prevent execution faults.

Application Pitfalls & Engineering Notes

This system relies on convective cooling. Horizontal mounting is strictly forbidden as it disrupts thermal airflow, leading to localized heating and automatic hardware thermal throttling. When designing control cabinets, verify that at least 30 mm of free spatial clearance is left above and below the CX module. To ensure flash memory longevity, always enable the Enhanced Write Filter (EWF) or File-Based Write Filter (FBWF) within the OS to redirect unnecessary log-writes away from the Compact Flash card.

Commissioning & Wiring Tips

Before powering up the system for the first time, ensure the Compact Flash card is firmly seated with its locking mechanism closed. Do not hot-swap or eject the card while the green disk-access LED is lit, as this can result in total system drive corruption. Always complete physical bus configurations (connecting K-bus or E-bus terminals) when the entire rack is fully de-energized.

Installation Guidelines