Abstract: In order to realize the integrated function of sluice management and control, S7-1200 PLC is used as the master control unit and S7-200 smart is used as the slave control unit. The load, ...
The NFL says it doesn't require fans to return footballs that go into the stands, though teams do prefer to hang on to their game balls. Demetrius Robinson / The Athletic; Photo: G Fiume / Getty ...
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