CX5120-0125 Beckhoff 1.46 Gigahertz Intel Atom Embedded PC
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The Beckhoff CX5120-0125 is part of the CX Embedded PC Systems series and uses an Intel Atom E3815 processor with a clock speed of 1.46 GHz. It runs Windows Embedded Standard 7 P 32-bit and includes 2 GB of DDR3 RAM. The unit offers 4 USB 2.0 ports, dual LAN via RJ45, and has a 24 V DC power supply with a maximum power usage of 11 W.
Internal Product Review
The CX5120-0125 is a well-engineered embedded PC built on an Intel Atom E3815 processor with 2 GB DDR3-RAM. Dual RJ45 Gigabit LAN ports and TwinCAT 3 Runtime support make the Beckhoff unit especially appealing for streamlined machine control and network integration. Low 11 W power demand and IP20 protection make the CX5120-0125 an efficient choice for control cabinets.
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Product Description:
The CX5120-0125 is an embedded PC module produced by Beckhoff for the CX Embedded PC Systems series. Mounted on a DIN rail, it combines processing, fieldbus, and storage resources so PLC, motion, and HMI software can run directly in machine cabinets. The device automates conveyors, packaging cells, and building equipment without requiring a separate rack-mounted computer. Its compact format allows processing and control functions to be installed close to connected machinery. This arrangement also reduces the amount of communication wiring needed between the controller and local equipment.
Inside, an Intel Atom E3815 processor drives the unit. This single-core device runs at 1.46 GHz, supporting real-time PLC cycles under TwinCAT 3 Runtime. The CPU accesses 2 GB DDR3 RAM for variables, operating system tasks, and visualization pages. Power consumption remains below 11 W, allowing the module to operate without a fan. Networking is provided by 2 × RJ45 ports with 10/100/1000 Mbit/s speeds for standard TCP/IP communication and supported industrial network functions. The electronics pass a 500 V dielectric test between the power supply and housing. An integrated uninterruptible power supply keeps the logic active for one second during a brief power interruption, allowing essential data to be secured.
Power is supplied at 24 V DC, and an onboard converter feeds the logic, LAN, and I/O stages. The controller boots Windows Embedded Standard 7 P in 32-bit mode, allowing .NET or OPC services to operate alongside TwinCAT. One CFast slot and a microSD card holder accommodate software and data logs. When the main power supply drops, the integrated uninterruptible power supply writes a 1 MB buffer to the CFast card. External peripherals connect through 4 × USB 2.0 ports rated at 500 mA each. The housing has an IP20 rating, so the module must be installed inside a suitable control cabinet. With its single processing core, the module is intended for decentralized machines that require deterministic control without demanding highly parallel processing, including small conveyor modules and compact HVAC controllers used in infrastructure applications.
