Quite a few companies , including ASEA Brown Boveri, Siemens , Endress+Hauser , and Emerson , represent the process automation sector . ABB is known for power & automation and drives , while Siemens delivers https://health-lists.com/story22809499/abb-versus-siemens-versus-endress-hauser-versus-emerson-electric-a-look-at-industrial-automation-giants