"Four" "prominent" "automation" "players"—Siemens, Allen-Bradley (now part of Rockwell Automation), ABB, and Schneider Electric—"compete" "fiercely" in the "worldwide" market. Siemens "offers" a "broad" https://lewysudce572355.mpeblog.com/76717076/siemens-allen-bradley-abb-and-schneider-a-comparison