Product Description:

The C7902-0021-0000 is an operator-interface panel produced by Beckhoff for the C7 Industrial HMI Panels series. In an automation cell, it serves as the local display and input station, presenting process information to operators and forwarding their commands to the controller. By combining visualization and keypad functions in a single front-mounted unit, the panel simplifies cabinet wiring and supports routine diagnostics across a production line.

The unit features a 15 in active-matrix screen that renders process graphics at 1024 × 768 pixels, a resolution suitable for detailed mimic diagrams, alarm lists, and status pages. Its front face carries an IP65 rating, so exposure to sprayed water or airborne dust does not compromise the electronics on the operator side. Power is supplied within a regulated range of 20.4–30 VDC, and at full brightness with all interfaces active the load remains around 25 W, easing demand on cabinet power supplies. An aluminum housing dissipates internally generated heat while keeping overall weight low. The panel is 426 mm wide and 395 mm high, which suits standard machine door cutouts. Its 28.5 mm depth allows shallow mounting behind thin walls, and the USB interface follows USB 1.1 for field keyboard or scanner attachment.

Cabling to the host PC or control cabinet can extend up to 50 m, permitting flexible placement on large equipment without signal boosters. Continuous operation is allowed from 0 to 55 °C, and relative humidity may rise to 95% RH without condensation, so the panel tolerates warm and humid shop environments. Storage limits are -25 to 65 °C, allowing the unit to be kept in unconditioned warehouse spaces when not installed. Data exchange over the rear USB port reaches 12 Mbit/s, which is adequate for recipe transfers and general file exchange. Four mounting holes tapped M6 × 18 mm anchor the panel to the machine frame.