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Productivity's Battleground (Forbes.com) Forbes.com - At its Twinsburg, Ohio plant (below), Rockwell uses its own Logix controllers to make the 2.5 million circuit boards per year that power them. On one line, sensors scan boards as they move along a conveyor; if a match is found, a controller inches the conveyor forward. The same controller tracks the temperature of an oven used to cure the glue between the electronics and the board, adjusting the speed of the oven's conveyor based on the reading. All the controllers are lashed to an enterprise-management program that spits out productivity readings every two hours and looks for bottlenecks. ... 