Numerous firms , including ABB , Electrical Siemens, E+H, and Emerson , represent the factory automation sector . ASEA Brown Boveri specializes in power & automation and motion control , while Siemens https://nimmansocial.com/story12092563/asea-brown-boveri-versus-siemens-versus-e-h-versus-emerson-a-comparison-at-industrial-automation-giants