# Beckhoff CX7051

Hardware · `CX7051` · verification: source checked

The Beckhoff CX7051 is an embedded PC with an Arm Cortex-M7 single-core processor running at 480 MHz. It has eight multi-functional 24 V DC inputs, four multi-functional 24 V DC outputs, one Ethernet interface, and a CANopen responder (slave) interface. It runs TwinCAT/RTOS and is programmed with TwinCAT 3 via Ethernet; E-bus or K-bus terminals can be attached as required.

## Specification

| Property | Value |
|---|---|
| Category | embedded pc |
| Weight | 0.142 kg |
| Ethernet ports | 1 |
| Processor | Arm® Cortex®-M7, 480 MHz |
| Supply voltage | 24 V DC (-15%/+20%) |
| IP rating | IP20 |
| Operating temp min | -25 °C |
| Operating temp max | 60 °C |

## Connected

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

## Safety

- Approvals/markings: CE and UL.
- Protection rating: IP20.
- Supply voltage: 24 V DC (-15%/+20%).
- Digital outputs: 24 V DC, 0.5 A per channel, 1-wire technique; short-circuit current typically <2 A and switching-off energy <150 mJ per channel.
- Operating temperature range: -25…+60°C; storage temperature: -40…+85°C; relative humidity 95% with 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.

## Study notes

- Integrated I/O: 8 multi-functional inputs (24 V DC) and 4 multi-functional outputs (24 V DC, 0.5 A, 1-wire technique).
- CANopen responder (slave) interface on a 9-pin D-sub connector; transmission rates 10 to 1000 kbaud.
- E-bus or K-bus terminals can be attached; the CX7051 automatically recognizes the connected I/O system at start-up.
- Flash memory: slot for microSD card, 512 MB included; main memory 32 MB SDR (not expandable); NOVRAM 4 kB.
- Operating system TwinCAT/RTOS; control software TwinCAT 3 runtime (XAR); programming via TwinCAT 3 over Ethernet.
- Internal capacitor-buffered real-time clock for time and date with storage capacity >21 days.
- Passive cooling; dimensions 49 mm x 100 mm x 73 mm.
- Multi-functional I/O includes 2 analog inputs (0…10 V, 12-bit), 1 counter (32-bit), incremental encoder interface, and 2 PWM outputs.
- Included TwinCAT 3 functions: TC1000 ADS, TC1100 I/O, TC1200 PLC, TF4100 Controller Toolbox, TF4110 Temperature Controller, TF6255 Modbus RTU, TF6340 Serial Communication, TF6701 IoT Communication (MQTT), TF6730 IoT Communicator, TF6760 IoT HTTPS/REST.

## Sources

1. [Embedded PC with Arm® Cortex®-M7, CANopen responder (slave) and integrated I/Os](https://www.beckhoff.com/en-en/products/ipc/embedded-pcs/cx7000-arm-r-cortex-r/cx7051.html) (accessed 2026-10-25)

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