"Four" "prominent" "automation" "players"—Siemens, Allen-Bradley (now part of Rockwell Automation), ABB, and Schneider Electric—"compete" "fiercely" in the "global" market. Siemens "offers" a "wide" range https://aoifeotyz553991.mpeblog.com/76703194/siemens-allen-bradley-abb-and-schneider-a-comparison