CX5140-0141 Beckhoff
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The Beckhoff CX5140-0141 is part of the CX Embedded PC Systems series and features a 1.91 GHz Intel Atom E3845 processor with 4 cores and 4 GB of DDR3 RAM. It includes four USB 2.0 ports, a dielectric strength of 500 V, and operates with a 24 V DC power supply. The unit has an IP20 protection rating and measures 142 x 100 x 92 mm.
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Product Description:
The CX5140-0141 is an embedded PC manufactured by Beckhoff for the CX Embedded PC Systems series. This fanless controller combines an industrial Intel architecture with modular I/O bus terminals, allowing it to run PLC logic, motion tasks, and HMI services directly on the machine. In factory environments, it executes Beckhoff’s TwinCAT 2 PLC Runtime, allowing field devices to be coordinated through EtherCAT or legacy K-bus wiring without an external supervisory computer.
The processing core is an Intel Atom E3845 that operates at 1.91 GHz and contains four processor cores, providing enough capacity for deterministic PLC cycles alongside Windows or embedded Linux services. Its main memory is 4 GB DDR3 RAM, which holds the real-time kernel, user applications, and data buffers for high-speed acquisition. Four front-panel connectors provide 4 × USB 2.0 ports, allowing users to attach programming dongles, flash drives, or wired adapters without opening the cabinet. Electrical consumption stays at a maximum of 16 W, reducing the thermal load so passive convection cooling is sufficient in most switchgear housings.
The controller draws control power from a field supply of 24 V DC, and its internal circuitry has an isolation rating of 500 V to prevent ground loops between the logic circuits and I/O terminals. The housing carries an IP20 rating, making it suitable for protected indoor panels and providing protection against contact with hazardous internal parts. The integrated bus bar passes up to 10 A through its power contacts for connected terminals, while separate terminal pins supply 2 A for sensor and encoder electronics. A one-second integrated uninterruptible power supply bridges brief brownouts so the controller can save variables to nonvolatile storage. These components fit within a compact 142 × 100 × 92 mm aluminum enclosure that mounts on a DIN rail beside Beckhoff digital and analog terminals.
