These are links to articles about technogly used in real applicaitons.
Disney Toy Story Attraction Uses Industrial Ethernet (click for complete article)
Rather than talk about technology, Siemens and Disney first provided me and 17 other lucky people an experience on the Toy Story Midway Mania!™ attraction at Disney’s Hollywood Studios®at the Walt Disney World® Resort followed by a discussion with Imagineers and Siemens employees. Toy Story Midway Mania! is one of the most technologically sophisticated attractions yet developed by Walt Disney Imagineering. It marks the company’s first use of industrial Ethernet for a ride’s control system which takes advantage of Siemens products.