CX8280 | Embedded PC with Arm® Cortex®-A53 and RS232/RS485
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CX8280 | Embedded PC with Arm® Cortex®-A53 and RS232/RS485
CX8200 Embedded PC series: higher computing power in a compact format
Embedded PCs with an Arm® Cortex® CPU
TwinCAT runtime for Linux® from Beckhoff
The CX8280 Embedded PC has two serial interfaces, one with RS232 and one with RS485 physics. These are both located on the D-sub socket. They are not bound to any particular protocol and can be used with the corresponding TwinCAT 3 Functions for the different serial communication protocols.
The CX8280 features an Arm® Cortex®-A53 dual-core processor with 1.2 GHz. The basic configuration of the CX8200 includes a 1 Gbit Ethernet interface, a USB 3.0 interface, a 1 GB LPDDR4 RAM, and a slot for a microSD card. The microSD card is not included in the scope of delivery and must be ordered separately, taking the desired memory capacity into account.
E-bus or K-bus terminals can be attached as required; the CX8280 automatically recognizes the type of I/O system connected during the start-up phase. The control system is programmed with TwinCAT 3 via the bus interface or the additional Ethernet interface. TwinCAT 3 licenses must be ordered via the TwinCAT 3 price list.
Beckhoff RT Linux® is used as operating system.
Product status:
product announcement | estimated market release 1st quarter 2026
Product information
| Technical data | CX8280 |
|---|---|
| Processor | Arm® Cortex®-A53, 1.2 GHz |
| Number of cores | 2 |
| Flash memory | slot for microSD card, card not included (requires a microSD card with a minimum capacity of 16 GB) |
| Main memory | 1 GB LPDDR4 RAM (not expandable) |
| 1-second UPS | integrated (1 MB on microSD card) |
| Interfaces | 1 x RJ45 10/100/1000 Mbit/s, 1 x USB 3.0, 1 x bus interface |
| Cooling | passive |
| Bus interface | D-sub socket, 9-pin, 1 x RS232, 1 x RS485 |
| Data transfer rates | 300 baud…115 kbaud |
| Diagnostics LED | 1 x TC status, 1 x WD, 1 x error |
| Clock | internal, capacitor-buffered real-time clock for time and date (storage capacity > 21 days) |
| Operating system | Beckhoff RT Linux® |
| Control software | TwinCAT 3 runtime (XAR) from TwinCAT 3.1 Build 4026 (XAE) |
| I/O connection | E-bus or K-bus, automatic recognition |
| Power supply | 24 V DC (-15%/+20%) |
| UPS OCT-capable | no |
| Current supply E-bus/K-bus | 2 A |
| Max. power consumption | 4 W |
| Max. power consumption (with loading UPS) | 7.5 W |
| Max. power consumption E-bus/K-bus | 10 W (5 V/max. 2 A) |
| Dimensions (W x H x D) | 71 mm x 100 mm x 73 mm |
| Weight | approx. 220 g |
| Operating temperature | -25…+60°C |
| Storage temperature | -40…+85°C |
| Relative humidity | 95%, no condensation |
| Vibration/shock resistance | conforms to EN 60068-2-6/EN 60068-2-27 |
| EMC immunity/emission | conforms to EN 61000-6-2/EN 61000-6-4 |
| Protection rating | IP20 |
| Approvals/markings | CE, UL |
| TwinCAT 3 platform level | Economy (20); please see here for an overview of all the TwinCAT 3 platform level |
| Material compliance | CX8280 |
|---|---|
| CAS No. | 7439-92-1 |
| REACH SVHC | Lead |
| REACH Annex XVII | compliant |
| REACH Annex XIV | compliant |
| SCIP No. | SCIP submission in progress |
| POP | compliant |
| RoHS | compliant with exemption |
| RoHS exemption | 6c: Copper alloy with a mass fraction of up to 4% lead, 7c-I: Lead-containing electrical and electronic components in glass and ceramic materials, excluding dielectric ceramics in capacitors |
| China-RoHS | www.beckhoff.com/china-rohs-ipc |
| CA Prop65 | www.beckhoff.com/prop65 |
| Disclaimer | This statement and the information contained above are, to the best of our knowledge and belief, accurate, based on the information we have received from our suppliers. This information is in line with the current standard of technology and our suppliers’ technical documentation. The absence of the substances is not verified by Beckhoff Automation by means of analytical tests. When addressed to our customers any information contained in this document is subject to the terms and conditions expressed in the governing customer agreement. Our general terms and conditions apply. |
| Ordering information | |
|---|---|
| CX8280 | CPU module, Beckhoff RT Linux®, TwinCAT 3 runtime (XAR), no licenses included, RS232/RS485 |
| Accessories | |
|---|---|
| CX1900-0132 | 16 GB microSD card |
| CX2900-0120 | CX cable bracket for strain relief (2 pieces) |
| ZB3180 | 9-pin D-sub connector for CX8x80/CX7080 (RS232/RS485) with switchable termination resistor |
| ZK1090-9191-0xxx | RJ45, plug, straight, male, 8-pin – RJ45, plug, straight, male, 8-pin |
| ZK1093-9191-0xxx | RJ45, plug, straight, male, 8-pin – RJ45, plug, straight, male, 8-pin |
| C9900-K530,-K552,-K553,-K554 | USB cable, shielded, PVC, 1 x 2 x 28AWG + 2C 20AWG, fixed installation, black, USB A, plug, straight, male, 4-pin – USB B, plug, straight, male, 4-pin |
| C9900-K569,-K570,K577 | USB cable, shielded, PVC, 2 x 2 x AWG28 + 1 x 2 AWG28 + 1 x 2 x AWG24, fixed installation, black, USB A, plug, straight, male, 9-pin – USB B, plug, straight, male, 9-pin |
| BZ1xxx | 100 contact labels, various colors, pre-printed |
| BZ2xxx | 100 contact labels, various colors, blank |
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