Numerous entities, including ASEA Brown Boveri, Siemens , Endress+Hauser , and Emerson Electric, represent the factory automation sector . ABB is known for power & automation and drives , while Siemens https://letsbookmarkit.com/story21928087/asea-brown-boveri-versus-siemens-versus-e-h-versus-emerson-electric-a-comparison-at-leading-automation-firms