Description

Product Overview

C6925‑1004‑0000 (short‑form C6925‑1004) is a fanless cabinet‑mount Industrial PC manufactured by Beckhoff, belonging to the C6925 compact IPC family for TwinCAT‑based machine and production‑line automation. Powered by Intel Atom x5‑E3940 quad‑core processor, this passive‑cooled industrial controller executes TwinCAT NC‑PTP / CNC motion control, PLC runtime, HMI visualization and data logging all within one aluminium‑enclosed unit.

Many machine‑builder retrofits face cabinet‑space constraints and fan‑reliability risks. C6925‑1004 eliminates moving cooling‑fan components to reduce field‑failure points. It provides rich native I/O, multiple Gigabit Ethernet ports, CFast and 2.5‑inch SSD storage slots. It supports Windows 10 IoT Enterprise pre‑installation, ready for EtherCAT fieldbus connection to drive servos, remote I/O and third‑party field instruments. As a drop‑in spare for existing Beckhoff automation cabinets, it re‑uses original EtherCAT terminals, wiring and machine application project, minimizing production‑line downtime during hardware replacement.

Technical Specifications

Parameter name	Parameter value
Product model	C6925‑1004‑0000 (abbreviated C6925‑1004)
Manufacturer	Beckhoff
Product type	Fanless cabinet‑mount Industrial PC
CPU	Intel Atom x5‑E3940, 4‑Core, 1.6 GHz
Memory	On‑board DDR4 RAM (model‑dependent configuration)
Storage	1 × CFast slot, 1 × 2.5‑inch SSD/HDD bay
Ethernet	3 × Gigabit‑LAN (EtherCAT‑capable port included)
On‑board interfaces	DVI‑I, USB3.0, USB2.0, RS232, audio
Power supply	24 V DC (22‑30 V DC wide‑range input)
Cooling	Passive fan‑less heat‑sink cooling
Operating temperature	0 °C ~ +55 °C full‑load
Mounting	Cabinet wall‑mount via mounting plate
Protection class	IP20 (cabinet‑installation)
Dimensions (W×H×D)	65 mm × 223 mm × 121 mm
Weight	Approx. 1.75 kg
Certifications	CE, UL, RoHS

Key Features and Advantages

fan‑less passive cooling: C6925‑1004 uses aluminium heat‑sink conduction cooling with zero fan. It avoids dust‑clogged‑fan faults and delivers long‑term stable operation for multi‑shift workshop environments.

integrated TwinCAT automation platform: Runs TwinCAT 3 runtime, merging PLC, motion control, NC interpolation and HMI on single hardware. Eliminates separate PLC hardware for mid‑size machine‑control applications.

multi‑isolated Gigabit‑Ethernet design: Three independent Gigabit‑LAN ports can be assigned for EtherCAT real‑time motion network, plant‑office HMI network and MES data interface, achieving physical network segmentation without extra external switches.

C6925-1004

dual‑storage architecture: CFast for OS & runtime; 2.5‑inch SSD for project backup and production‑data logging. Improves system crash‑recovery capability for continuous‑run machinery.

compact cabinet‑wall‑mount form‑factor: Slim aluminium housing saves precious cabinet space, well‑suited for machine‑base integrated control cabinets with limited installation room.

spare‑compatible for legacy Beckhoff installations: Shares mechanical mounting and basic I/O definition with other C6925 variants. After deploying existing TwinCAT project and licence, it can replace defective IPC without modifying machine EtherCAT I/O layout or field wiring.

Application Fields

C6925‑1004 is widely deployed inside machine‑tool, packaging, printing, wood‑working and material‑handling automation cabinets.

In packaging machinery, it executes multi‑axis synchronised motion control for filling, sealing and conveying axes via EtherCAT, running PLC logic and local HMI visualization on the same IPC hardware.

For machine‑tool and special‑purpose equipment, C6925‑1004 undertakes TwinCAT‑CNC interpolation, spindle control and process‑data recording. Fan‑less design is ideal for dusty production‑floor workshops where fans easily become contaminated.

In retrofit & modernisation projects, it serves as spare replacement for ageing C69‑series IPCs. It re‑uses existing EtherCAT terminals, servo drives and field‑cabling; only OS image and TwinCAT project need restoration, extending service‑life of high‑value production‑machinery assets. It is also used for small‑scale process skids requiring integrated PLC‑plus‑HMI functionality.

Installation and Maintenance

pre‑installation preparation: Before powering C6925‑1004, secure the unit firmly to cabinet mounting plate. Maintain minimum 5 cm clearance top‑and‑bottom for passive heat dissipation. Wire 24 V DC power supply; separate EtherCAT signal cables away from high‑power motor cables. Deploy OS image, restore TwinCAT project and licence file, complete EtherCAT scan and axis commissioning before machine production run.

maintenance recommendations: Keep cabinet filter mats clean to guarantee heat‑dissipation performance. Regularly back‑up OS image and TwinCAT project. Monitor health status of CFast / SSD storage media, as flash‑based storage is a wear component. The onboard CR2032 motherboard battery needs periodic replacement for RTC retention. Do not open aluminium housing on‑site. C6925‑1004 contains no user‑serviceable internal assemblies; send defective unit to Beckhoff‑authorised repair centres.

Product Warranty & Support

Each C6925‑1004‑0000 passes factory hardware test, EtherCAT communication validation and full runtime burn‑in test before shipment. Standard equivalent warranty covers manufacturing defects for 12 months from delivery date. Spare‑part sourcing, remote‑technical guidance and SAT‑support services are available for OS‑image deployment, TwinCAT project restoration and EtherCAT‑network troubleshooting. Application engineers offer support for motion‑parameter setup and system‑backup strategy configuration. Long‑term spare‑inventory mitigates obsolescence risk for installed Beckhoff IPC‑based automation assets.

C6925‑1004 Fanless cabinet‑mount Industrial PC