Several firms , including ABB , Siemens , Endress+Hauser , and Emerson Electric, represent the process automation sector . ABB is known for robotics and drives , while Electrical Siemens features a https://agendabookmarks.com/story21906448/asea-brown-boveri-versus-siemens-versus-e-h-versus-emerson-electric-a-comparison-at-leading-automation-firms