Design a PLC program that satisfies the following conditions (latched interlocks): Momentarily depressing SW1 turns on light...

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Electrical Engineering

Design a PLC program that satisfies the followingconditions (latched interlocks):
Momentarily depressing SW1 turns on light 1; light 1 will remainon even after SW1 is turned off. Momentarily pressing SW 2 turns onlight 2; light 2 remains on even after SW2 is turned off. Light 2can only be energized if light 1 is already on. Momentarilypressing SW 3 turns on light 3; light 3 remains on even after SW 3is turned off. Light 3 can only be turned on if either light 1 orlight 2 are already on. Momentarily pressing SW4 turns all lightsoff. After the circuit is turned off it is immediately ready tostart again.

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4.4 Ratings (737 Votes)

Asshown in the Ladder Logic SW1 SW2 and SW3 are NO PushButtons While SW4 is NC Push buttonLights are represented by L1 L2 and L3 A B and C are latchingrelays used to hold up the latched interlocks or contacts shown byNO contacts a B and C corresponding to A See Answer

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