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  3. question 3 design ladder logic for a security system for...

Question: question 3 design ladder logic for a security system for...

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Question 3 Design ladder logic for a security system for a building that will sound an alarm and turn the lights in the building on and off if there is entry through any door or window when fewer than three persons are in the building and the lights are off. Draw the ladder, connection and power diagrams. State all assumptions made. (12 marks)
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