Embedded PC CX9020

CX9020 | Basic CPU module

The CX9020 is a compact, DIN rail-mountable Ethernet control system with 1 GHz ARM Cortex™-A8 CPU. The connection for the Beckhoff I/O systems is directly integrated into the CPU module. The unit offers automatic bus system identification (K-bus or E-bus) and independently switches in the corresponding mode. The CX9020 comprises the CPU with two microSD card slots, the internal RAM and 128 kB NOVRAM as non-volatile memory. The basic configuration also includes two switched Ethernet RJ45 interfaces, four USB 2.0 interfaces and a DVI-D interface. The RJ45 interfaces are connected to an internal switch and offer a simple option for creating a line topology without the need for additional Ethernet switches. The operating system is Microsoft Windows Embedded Compact 7. TwinCAT automation software transforms a CX9020 system into a powerful PLC and Motion Control system that can be operated with or without visualisation. Optionally, the unit can be ordered with a fieldbus, serial or audio interface.

The extended operating temperature range between -25 and +60 °C enables application in climatically demanding situations.

Order identifier

The order identifier is derived as follows:

CX9020 Basic CPU module

Technical dataCX9020
ProcessorARM Cortex™-A8, 1 GHz
Number of cores1
Flash memory2 x slot for microSD card, 512 MB included (expandable)
Main memory1 GB DDR3 RAM (not expandable)
Persistent memory128 KB NOVRAM integrated
Interfaces2 x RJ45 10/100 Mbit/s (internal switch), 1 x DVI-D, 4 x USB 2.0, 1 x optional interface
Diagnostics LED1 x power, 1 x TC status, 2 x flash access, 2 x bus status
Clockinternal battery-backed clock for time and date (battery exchangeable)
Operating systemMicrosoft Windows Embedded Compact 7, English
Control softwareTwinCAT 2 runtime
TwinCAT 3 runtime (XAR)
I/O connectionE-bus or K-bus, automatic recognition
Power supply24 V DC (-15 %/+20 %)
Current supply E-bus/K-bus2 A
Max. power loss5 W (including the system interfaces)
Dimensions (W x H x D)84 mm x 99 mm x 91 mm
Weightapprox. 590 g
Operating/storage temperature-25…+60 °C/-40…+85 °C
Relative humidity95 %, no condensation
Vibration/shock resistanceconforms to EN 60068-2-6/EN 60068-2-27
EMC immunity/emissionconforms to EN 61000-6-2/EN 61000-6-4
Protection classIP 20
Approvals/markingsCE, UL, ATEX, GL, IECEx
Ex-MarkingII 3 G Ex nA IIC T4 Gc
II 3 D Ex tc IIIC T135 °C Dc
Ex nA IIC T4 Gc
Ex tc IIIC T135 °C Dc
TC3 performance classEconomy Plus (30); please see here for an overview of all the TwinCAT 3 performance classes
Ordering informationno operating systemWindows Embedded Compact 7no TwinCATTwinCAT 2 PLC runtimeTwinCAT 2 NC PTP runtimeTwinCAT 3 runtime (XAR)

*only suitable for Linux (no Windows CE is possible)

CX9020-U900internal, capacitive 1-second UPS to ensure secure backup of persistent application data on the microSD card
CX2900-0107Device modification for CX5120, CX5130, CX5140 and CX9020 Embedded PCs according to the requirements for ATEX and IECEx certification. The modification is mandatory for the usage of CX5120, CX5130, CX5140 and CX9020 in hazardous areas, Zone 2/22.
It includes the modification and repositioning of the device label as well as a mounting bracket installed ex works for mechanical locking of the connectors.
Product labeling:
ATEX: II 3 G Ex nA IIC T4 Gc and II 3 D Ex tc IIIC T135 °C Dc
IECEx: Ex nA IIC T4 Gc and Ex tc IIIC T135 °C Dc
Read the device documentation for use in hazardous areas carefully.
Optional interfaces 
CX9020-N020audio interface, 3 x 3.5 mm jack sockets, Line In, Mic In, Line Out
CX9020-N030RS232 interface, D-sub plug, 9-pin
CX9020-N031RS485 interface, D-sub socket, 9-pin, configuration as an end point, without echo, termination on
CX9020-N031-0001RS485 interface, D-sub socket, 9-pin, configuration as an end point, with echo, termination on
CX9020-N031-0002RS485 interface, D-sub socket, 9-pin, configuration as drop point, without echo, termination off