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This is the first segment of the first volume on “How to Program a PLC”. In this series, we will examine an application and then create the code (logic) for the control of the discussed application. In this first segment, we discuss the electrical design which we will later convert to logic. This series will take you through the process of writing a program for a specific application. This first one is very simple ;)

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  1. Penina
    May 17, 2019

    Hi, I am majoring in Mechanical Engineering and I take classes of Mechatronics. I did well in wiring but ever since it proceeded to PLC, I started to have some troubles. I extremely needed extra help and I am glad I came across to this website. I will keep coming back here to relearn the material. Thank you so much!!

  2. Sarah qasim
    Sep 27, 2018

    Thanks a looooooot, that was a great video and very helpful. I really loved how you analyzed everytging and showed step by step operation of the entire program.

  3. subodh
    Dec 27, 2016

    Hi Smith
    If you want to detect person and object you have to use capacitive sensor and inductive sensor for detection and a counter block for counting in and out people

  4. smith sharma
    Jun 25, 2015

    i need a plc circuit diagram which will work as when we are entering from the gate it will count the person automatically n same as for going out side also it should count the person how many are went outside from the gate. and it should sence also whether the person will bring anything from outside. means when they will bring someinligal things from somewhere it should sence and we will get notification from some buzzer.
    thanking you
    smith sharma

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