Quite a few companies , including ABB , Electrical Siemens, Endress+Hauser , and Emerson , dominate the factory automation sector . ABB specializes in power & automation and drives , while Siemens delivers https://socialmarkz.com/story12676619/asea-brown-boveri-versus-electrical-siemens-versus-e-h-versus-emerson-a-look-at-industrial-automation-giants