CX5140-0142 Beckhoff
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The Beckhoff CX5140-0142 is an embedded PC from the CX Embedded PC Systems series, featuring a quad-core Intel Atom E3845 processor with a clock speed of 1.91 GHz and 4 GB of DDR3 RAM. It has two LAN ports supporting up to 1000 Mbit/s, four USB 2.0 ports, and dimensions of 142 x 100 x 92 mm. The system is powered by a 24 V DC supply and includes an integrated UPS with 1 second capacity.
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Product Description:
Beckhoff manufactures the CX5140-0142, an embedded PC from the CX Embedded PC Systems series intended to act as a compact control platform inside automated machines and production cells. The unit combines x86 processing with real-time task management so it can execute PLC, motion, and HMI roles through TwinCAT software. By mounting directly on a DIN rail and interfacing with EtherCAT, E-bus, or classic K-bus terminals, it replaces separate controllers and streamlines cabinet layouts in factory automation.
The CX5140-0142 uses an Intel Atom E3845 processor operating at 1.91 GHz; its four cores allow the simultaneous execution of control logic, visualization, and communication tasks. System responsiveness is supported by 4 GB of DDR3 RAM, while a dedicated 256 MB graphics allocation handles local display content. The preinstalled TwinCAT 2 NC PTP Runtime provides deterministic positioning control without requiring external motion cards. Field connectivity is supplied by four USB 2.0 Type-A sockets for service devices and removable media. The unit also has two RJ45 10/100/1000 Mbit/s Ethernet ports that can separate machine and plant networks. Internal I/O backplane consumption stays within the 10 W E-bus/K-bus budget, preventing excessive loading of downstream terminal power feeds.
The controller accepts a 24 V DC supply and typically draws 16 W during normal operation. When the integrated UPS engages for its one-second hold-up interval, power consumption rises to 23 W. A dielectric strength of 500 V isolates the logic circuitry from field wiring disturbances, reducing risk during transient events. The housing measures 142 × 100 × 92 mm, allowing high-density cabinet placement without occupying excessive rail space. Its aluminum enclosure aids passive heat dissipation, so no cooling fans are needed. The fanless design also eliminates moving cooling components that could introduce vibration or require periodic airflow maintenance. The compact enclosure accommodates the processing hardware, network interfaces, USB connections, internal backplane interface, and UPS functionality in one DIN-rail-mounted unit.
