# Beckhoff CX9020

Hardware · `CX9020` · verification: source checked

The Beckhoff CX9020 is a DIN rail-mountable embedded control system with a 1 GHz Arm Cortex-A8 processor. It connects directly to Beckhoff E-bus or K-bus I/O and includes two switched Ethernet ports, USB and DVI-D interfaces. It runs Windows Embedded Compact 7 and can run TwinCAT PLC and motion control software.

## Specification

| Property | Value |
|---|---|
| Category | embedded pc |
| Weight | 0.59 kg |
| Ethernet ports | 2 |
| Processor | Arm® Cortex®-A8, 1 GHz |
| Supply voltage | 24 V DC (-15%/+20%) |
| Power consumption | 0.005 kW |
| IP rating | IP20 |
| Operating temp min | -25 °C |
| Operating temp max | 60 °C |

## Connected

- Manufacturer: [Beckhoff Automation](https://machineschema.com/manufacturer/beckhoff.md)

## Safety

- Approvals/markings: CE, UL, DNV; with CX2900-0107 ordering option: ATEX, IECEx, cFMus.
- ATEX marking: II 3G Ex nA IIC T4 Gc; II 3D Ex tc IIIC T135°C Dc.
- IECEx marking: Ex nA IIC T4 Gc; Ex tc IIIC T135°C Dc.
- cFMus marking: Class I, Division 2, Groups A, B, C, D; Class I, Zone 2, AEx ec IIC T4 Gc.
- For hazardous areas zone 2/22 or Class I, Div. 2, ordering option CX2900-0107 is mandatory; read the device documentation for use in hazardous areas carefully.

## Study notes

- CPU has 1 core.
- Main memory is 1 GB DDR3 RAM and is not expandable.
- Flash memory has 2 microSD card slots with a 512 MB card included; capacity can be expanded.
- Includes 128 kB NOVRAM non-volatile memory.
- I/O connection is E-bus or K-bus with automatic bus system identification; interfaces include 2 x RJ45 10/100 Mbit/s on an internal switch, 1 x DVI-D, and 4 x USB 2.0.
- Operating system is Windows Embedded Compact 7, English.
- Control software options include TwinCAT 2 runtime and TwinCAT 3 runtime (XAR).
- Cooling is passive.
- Clock is internal battery-backed for time and date, with exchangeable battery.
- Dimensions are 84 mm x 100 mm x 91 mm (W x H x D).
- Storage temperature range is -40 to +85°C; relative humidity is 95% with no condensation; vibration/shock conform to EN 60068-2-6/EN 60068-2-27; EMC conforms to EN 61000-6-2/EN 61000-6-4.
- Optional fieldbus interfaces include EtherCAT slave, PROFIBUS master/slave, CANopen master/slave, and PROFINET RT controller/device.

## Sources

1. [Embedded PC with Arm® Cortex®-A8](https://www.beckhoff.com/en-en/products/ipc/embedded-pcs/cx9020-arm-r-cortex-r-a8/cx9020.html) (accessed 2026-10-25)

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