Quite a few firms , including ABB , Electrical Siemens, Endress+Hauser , and Emerson Electric, represent the industrial automation landscape . ABB is known for automated systems and drives , while Siemens https://userbookmark.com/story21893137/asea-brown-boveri-versus-siemens-versus-endress-hauser-versus-emerson-electric-a-comparison-at-leading-automation-firms