"Several" "major" "industrial" "players"—Siemens, Allen-Bradley (now part of Rockwell Automation), ABB, and Schneider Electric—"compete" "actively" in the "international" market. Siemens "offers" a https://siobhaneqsl081290.mpeblog.com/76701774/siemens-allen-bradley-abb-and-schneider-a-comparison