C6920-1148-0060 by Beckhoff

The C6920-1148-0060 is a compact control-cabinet industrial PC produced by Beckhoff and assigned to the C6 Industrial PC Units series. Designed as a deterministic computing core for PLC, HMI, and data acquisition tasks, the unit serves as the central hardware platform in automated production lines, test stands, and building-management installations. Its enclosure, I/O complement, and DC power entry allow direct mounting in machine electrical panels without external adapters.

Electrical power is supplied through an eight-pole connector that accepts 24 VDC and conductors up to 1.5 mm². The internal power circuit supports a peak connector current of 16 A, allowing the PC to operate with typical DC control supplies without an additional converter. The housing meets IP20 protection, providing protection against finger contact and requiring installation in a closed cabinet. For network integration, the PC offers two RJ-45 BASE-T Ethernet ports, enabling redundant or segmented plant communication channels. Removable media, scanners, and programming dongles can connect through four USB 2.0 receptacles, while legacy peripherals can use one RS-232 D-Sub-9 serial port. The unit also provides one DVI-I output for digital or analog monitors used for local visualization. A 3.5-inch motherboard, two internal cooling fans, and a fieldbus D-Sub-9 connector fit within the compact internal layout.

Continuous operation is permitted at temperatures up to 55 °C, supported by forced airflow and an aluminum chassis that channels heat toward the cabinet air path. Humidity can reach 95% RH without condensation, allowing the PC to operate in humid process areas when installed in a suitable cabinet. During transport, the unit withstands storage temperatures up to 65 °C and mechanical shocks of 5 G for 30 ms, helping protect solid-state drives and circuit boards from impact during handling. Its resistance to vibration also supports installation on typical factory-floor machine mounts.