The Processor, Power Supply, Input/Output Modules, and a Programming Device are the hardware components of a PLC. – The PLC modules receive DC power from the AC mains-connected Power Supply, but field devices do not. – Digital or analogue field devices are connected to the input/output modules.
PLC input cards rarely provide power, which means that the inputs and sensors require external power. Output modules, like input modules, rarely provide power and instead serve as switches.
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Yes
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Faiz Siddique
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Dear You make a little mistake in NPN transistor current flow from Emitter to Collector , not form collector to Emitter please correct it
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Sagar
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the unit of voltage is volts please change it (9:07)the classes are absolutely good
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