Quite a few firms , including ABB , Siemens , Endress+Hauser , and Emerson Electric, represent the process automation landscape . ASEA Brown Boveri is known for automated systems and motion control , while https://toplistar.com/story24145404/asea-brown-boveri-versus-electrical-siemens-versus-endress-hauser-versus-emerson-a-look-at-leading-automation-firms