Wednesday, June 10, 2009

Introduction Of Equipments Input for PLC Part 1

Introduction of Input for PLC
Input which in intention is signal which gives information to PLC.
Signal stepping into PLC is Digital signal.
Digital signal only recognize ON ( 1) and OFF ( 0).
Digital signal Diagram :

Example Of Equipments giving Input Signal :
Switches, Limit Switch, Sensor, Output Timer, Temperature Output Controller, Contact Relay, Contact contactor, Contact Thermal Over Load, etc.
Example Picture for Push Button Swicth, Push Button Swicth With Lamp, Push Button Emergency, Push Button Emergency With Reset.

Example Picture for Selector Swicth, Ring Selector Swicth, Toggle Swicth, Limit Swicth for Start

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