panel PCs from CRE Rösler, the patented "QuickLock" quick-change device minimizes panel changes, which can be carried out without tools and by just one person in 30 seconds. Mechanically, stand and support arm mounting with different rotation and tilt angles are possible - the resistance torque of the rotation/tilt axis is infinitely adjustable, as is the fixation. Adaptation to all 48 mm diameter, GTN-II and CP60/40 support arm systems from various manufacturers is also possible. All connections and interfaces of the PC are easily accessible and arranged in the spacious, lockable connection compartment. A storage medium located in the connection compartment of the support arm system is used to store the device ID and/or the configuration data of the operating station. If the operating unit is replaced, it is immediately registered to the respective station during reinstallation. This means that the operating unit is immediately ready for use again.