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Pneumatic Symbols and Control Element Description
Positionsensing and Pressuresensing
Circuit Layout Presentation and Labelling
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a1 bo achieved actuated auxiliary memory B1 BO binary counter bo a1 bo b1 Boolean algebra Circuit Construction column compound circuits confirmation signal control problem 12.5 conveyor COUNT PULSE counting values cycle-selection module cylinder Design Considerations designation Bl diagram in figure directional control valves emergency-stop module field flip-flops further clarification given traverse-time diagram Gray code hardware Karnaugh-Veitch map labelled logic circuit design logic equations machine MAP FOR MEMORY mapping method memory designation memory valve minimisation maps minimised equation operated Optional looping pilot signal Pneumatic Circuit PNEUMATIC SYMBOL LOGIC position sequence valves preparation signal program selector proximity sensor retraction secondary variables selection selector circuit selector memory sequence step sequential circuit sequential logic Series functions shown in figure step-counter circuit step-counter method stepping unit stop switching equations SYMBOL LOGIC SYMBOL tape Time-delay timer traverse-time diagram figure truth table workpiece X X X