MAJOR COMPONENT OF A COMMON PLC 1)INPUT MODULES 2)OUTPUT MODULES 3)CPU(CENTRAL PROCESSING UNIT) 4)MEMORY 5)POWER SUPPLY 6)PROG...
MAJOR COMPONENT OF A COMMON PLC
1)INPUT MODULES
2)OUTPUT MODULES
3)CPU(CENTRAL PROCESSING UNIT)
4)MEMORY
5)POWER SUPPLY
6)PROGRAMMING DEVICE
INPUT MODULES-accepts and converts signals from sensors into a logic signal. ex. push button or switch.
INPUT MODULES-that converts control instruction a signal that can be used by actuators Ex. lamps,alarms.
CPU(CENTRAL PROCESSING UNIT)-it is the brain of plc and governs the activites of the entire plc system.
CPU consists of ALU,internal memory of the CPU,Internal Timers ,Counters And Flag.
MEMORY-is the component that stores information, programs and data in a PLC
POWER SUPPLY-provides the voltage run the PLC components.
PROGRAMMING DEVICE-the programming terminal is used for programming the PLC and monitoring PLCs operations.
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