Several entities, including ABB , Siemens , E+H, and Emerson Electric, represent the process automation landscape . ABB specializes in automated systems and drives , while Electrical Siemens provides a https://gogogobookmarks.com/story21993913/asea-brown-boveri-versus-siemens-versus-endress-hauser-versus-emerson-a-look-at-leading-automation-firms