Description

The BECKHOFF C9900-E797 is a dedicated physical operator interface extension designed for right-side mounting on compatible Control Panels and Panel PCs. Specifically engineered to match units with 15-inch displays without integrated keyboards, this unit expands digital operator interfaces with physical controls, status indications, and safety elements. It provides an ergonomic interface to transition software actions into direct mechanical feedback on the machine floor.

This extension features 20 square push-button keys with integrated signal lamps and a dedicated emergency stop button. System integration uses a dual-path communication topology. Primary button activations and signal lamp controls are handled over a USB connection, while a secondary independent wiring path is provided for physical control and safety logic integration. Each push-button contains a second normally-open contact mapped directly to a local terminal block for direct-wire system configurations.

Features

• Engineered for right-side mounting on compatible 15-inch display Control Panels and Panel PCs.
• Equipped with 20 square push-button keys (30 x 30 mm, Siemens Signum type) featuring built-in signal lamps.
• Includes one high-visibility, directly wireable emergency stop push-button for hardwired system safety integration.
• USB transmission path handles all signal lamp controls and the primary normally-open (NO) contact for each push-button.
• Directly wireable auxiliary terminal row provides direct access to a second normally-open (NO) contact for every push-button.
• Customizable insert labels under the push-button caps allow for clear, model-specific interface marking.

Applications

• Operator control station expansion for compatible BECKHOFF Control Panels and Panel PCs.
• Industrial manufacturing machinery requiring both touchscreen operation and physical push-button controls.
• Fail-safe monitoring stations requiring direct hardwired emergency stop integration alongside digital control systems.

Technical Specifications

Connections / Interfaces

Installation Guidelines

1. Verify the compatibility of the BECKHOFF C9900-E797 with the specific 15-inch CP6x23 or CP7x23 host Control Panel or Panel PC prior to starting installation.
2. Ensure all electrical power supply sources connected to the host control panel and associated machinery are fully de-energized.
3. Align and mechanically secure the push-button extension housing to the right-hand side of the main display unit.
4. Connect the interface USB cable to a designated USB port on the host display panel for communications and signal lamp power.
5. Run dedicated wiring from the emergency stop contacts to the control system's physical safety relay or safety controller.
6. Wire the auxiliary second normally-open contacts from the terminal row to the external target systems as dictated by the system design schematics.
7. Apply power to the system and verify the physical operation of all button transitions, lamp signals, and safety circuits prior to commissioning.