Numerous companies , including ABB , Siemens , Endress+Hauser , and Emerson Electric, dominate the process automation sector . ABB specializes in automated systems and motion control , while Siemens https://socialmediatotal.com/story7040295/asea-brown-boveri-versus-electrical-siemens-versus-e-h-versus-emerson-electric-a-comparison-at-industrial-automation-giants