C6920-1128-0050 Beckhoff
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The Beckhoff C6920-1128-0050 is an industrial PC from the C6 Industrial PC Units series, featuring a 3.5-inch motherboard and a cooling system with a dual fan cartridge. It provides connectivity with 2 Ethernet ports supporting 10/100/1000BASE-T, four USB 2.0 ports, a DVI-I interface, and both fieldbus and serial interfaces via D-Sub-9 connectors. The unit supports a supply voltage of 24 VDC, is rated for IP20 protection, and can operate at temperatures up to 55°C with a maximum relative humidity of 95%.
Internal Product Review
The C6920-1128-0050 is a Beckhoff industrial PC unit with 2 RJ-45 Ethernet ports and 10/100/1000BASE-T support for fast network integration. A fan cartridge with 2 fans supports stable thermal management in cabinet installations. IP20 protection and a maximum operating temperature of 55 °C make this unit a strong choice for demanding automation service.
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Product Description:
The C6920-1128-0050 industrial PC belongs to the C6 Industrial PC Units series from Beckhoff. This compact control computer is intended for cabinet installation where it hosts the operating system, machine-level software, and communication services required for deterministic automation tasks. By combining CPU processing, fieldbus routing, and visualization in a single enclosure, it replaces separate PLC and HMI hardware and simplifies wiring inside production cells. Its cabinet-mounted design keeps computing functions centralized while leaving the main connection points accessible for machine integration.
The unit is powered from 24 VDC through an 8-pole supply connector that also carries remote power-on lines. Two onboard Gigabit Ethernet ports are presented as 2 x RJ-45 sockets and support network speeds up to 10/100/1000BASE-T for real-time EtherCAT or standard TCP/IP traffic. The front panel provides 4 x USB 2.0 connectors for service keyboards, image backup media, or camera inputs. A single DVI-I output drives digital or analog displays, and a D-Sub-9 fieldbus interface can be mapped, for example, to PROFIBUS. Cooling is handled by a replaceable fan cartridge that holds two fans, maintaining airflow across the 3.5-inch motherboard while keeping the electronics within the IP20 housing. A separate D-Sub-9 serial port provides legacy RS-232 communication with barcode readers or weigh scales.
Designed for shop-floor use, the controller operates reliably up to 55 °C ambient temperature and in air with relative humidity as high as 95% without condensation. Mechanical resilience is verified for shocks of 5 G with a duration of 30 ms, so it tolerates transport vibration or sudden impacts when mounted close to motion assemblies. The enclosure leaves room for the fan cartridge while still fitting shallow control panels, and the 3.5-inch motherboard format supports straightforward board replacement while the dual-fan module can be exchanged without tools.
