At carnivals like the Bergkirchweih and the Oktoberfest, carnival attractions like Merry-go-rounds and ferris wheels can be safely operated with modern control automation hard- and software. More than 100 carousels and carnival rides have been equipped with Simatic S5 or S7 programmable logic controllers (PLC), ac drives, ac controllers and led lighting. For this kind of operation reliability and availability is very important. Therefore Siemens has a very quick and reliable service task force in place to ensure that carnival attractions keep on running day by day. http://www.siemens.com/automation