PLC (Chpater 4)

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Transcript of PLC (Chpater 4)

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Logic Gates and Ladder Diagrams

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AND Gate

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AND Gate

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AND Gate

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OR Gate

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OR Gate

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OR Gate

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NOT Gate

The output of a NOT gate is the inverse of the input. The NOT gate is sometimes called an inverter.

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NOT Gate

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NOT Gate

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NAND (NOT AND) Gate

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NAND (NOT AND) Gate

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NAND (NOT AND) Gate

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NOR (NOT OR) Gate

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NOR (NOT OR) Gate

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NOR (NOT OR) Gate

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XOR (Exclusive OR) Gate

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XOR (Exclusive OR) Gate

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XOR (Exclusive OR) Gate

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XOR (Exclusive OR) Gate

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XNOR (Exclusive NOR) Gate

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XNOR (Exclusive NOR) Gate

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XNOR (Exclusive NOR) Gate