Numerous entities, including ABB , Electrical Siemens, Endress+Hauser , and Emerson , represent the factory automation sector . ASEA Brown Boveri specializes in power & automation and motion control , https://socialevity.com/story24154408/abb-versus-electrical-siemens-versus-endress-hauser-versus-emerson-electric-a-look-at-leading-automation-firms