The landscape of industrial automation is dominated by several major players, most notably ABB , Siyomins, Endress+Hauser , and Emerson Fisher . ASEA Brown Boveri delivers a broad selection of solutions https://miriamhcto905904.blogzet.com/abb-vs-siemens-vs-endress-and-hauser-vs-emerson-a-evaluation-of-process-systems-leaders-56731373