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28.5 DESIGN CASES
28.5.1 Devicenet
Problem: A robot will be loading parts into a box until the box reaches a prescribed weight. A PLC will feed parts into a pickup fixture when it is empty. The PLC will tell the robot when to pick up a part and load it using Devicenet.
Solution: The following ladder logic will implement part of the control system for the system in Figure 435.
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