PLC Programming With Ladder Logic > Case Studies

Traffic Light Signal Control Logic Part - 1

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The traffic light signal control logic is a computerized system used to control traffic lights. It was designed to help the transportation department to achieve their goal of managing traffic in a safer and more efficient way.

Although the traffic light is one of the most used symbols in our world, it is not well-understood when it comes to its meaning. This makes it difficult for many people to understand what actually happens when they are driving on a road without any signs or signals.

A simple interpretation of how this system works would be that green means go, yellow means stop and red means stop but don't proceed. This interpretation would only be accurate if there were no other cars or pedestrians on the road, as what determines whether you can proceed through an intersection or not depends on the physical layout of

There are many benefits of using a traffic light signal control logic.
One of the most significant benefits is that it saves time, which can then be put towards other tasks. Moreover, it reduces the number of accidents as well as the traffic congestion in a given area.
The main point of such system is to control traffic lights from a central location only with minimal effort from drivers and police officers.

PLCs are a type of programmable logic controller. They are used in factories to create an automated control system in factories. In recent years, they have been used by businesses across many industries including manufacturing, food production, healthcare and technology. In general there are three different categories of PLCs: 1) Industrial PLCs which typically work with analog signals 2) Commercial PLCs which typically work with digital signals 3) Supervisory Control And Data Acquisition (SCADA) systems which typically allows for remote monitoring of industrial processes and the production process.

Signal control logic is a type of simple logic. It works by taking input from one or more sensors and then producing an output based on the input provided by the sensors.

Some applications of signal control logic include:

  • Automation of production processes
  • Robotics
  • Smart buildings
  • Process optimization

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Course Content

  1. Introduction to PLC Programming
    3m 49s

  1. How to do PLC Programming using Ladder Logic
    15m 14s
  2. Installation of RSLogix Micro Starter Lite
    12m
  3. Elements of RSLogix Micro Starter Lite
    15m 32s

  1. How to Programme and Run the Logic
    19m 14s
  2. PLC Programming of OR Logic Gate
    8m 24s
  3. PLC Programming of AND and NOT Logic Gate
    12m 48s
  4. PLC Programming of NAND,NOR and XOR Logic Gate
    16m 28s

  1. Ladder Logic of Push Button Latching
    14m 16s
  2. Ladder Logic of Interlock Circuit
    21m 25s
  3. Trick to Optimize Use of I-O in Ladder Logic
    5m 33s
  4. Ladder Programming of Motor Operation
    13m 58s
  5. Ladder Logic of Motor Forward Reverse Interlock Protection
    20m 35s

  1. How to Use Timer in Ladder Logic
    17m 39s
  2. On Delay Timer in Ladder Diagram
    8m 39s
  3. Off Delay Timer in Ladder Diagram
    11m 15s
  4. Retentive Timer in Ladder Diagram
    12m 11s
  5. Star to Delta Motor Starter in Ladder Logic
    28m 2s
  6. Counter-up with On Delay Timer Logic
    9m 2s
  7. Countdown with Reset Function in Ladder Logic
    12m 31s
  8. Up-Down Counter Logic with Application in Ladder Logic
    9m

  1. Comparator LIM Block in Ladder Logic
    7m 35s
  2. Comparator EQU,LES,LEQ,NEQ,GRT and GEQ Block in Ladder Logic
    19m 34s
  3. Math Operations in Logic
    30m 16s
  4. Move Blocks in Ladder Logic
    10m 3s
  5. Logical Gate Blocks in Ladder Logic
    22m 5s

  1. Decimal - BCD Conversions in Ladder Logic
    15m 41s
  2. Bit Shift Left and Right in Ladder Logic
    14m 1s
  3. Scale Parameters
    20m 41s
  4. Hacks for Ladder Logic
    10m 11s

  1. Water Tank Filling Control Logic
    27m 57s
  2. Chemical Mixing Process Logic
    33m 11s
  3. Traffic Light Signal Control Logic Part - 1
    23m 41s
  4. Traffic Light Signal Control Logic Part - 2
    36m 46s
  5. Elevator Control Logic
    01h 9m 40s

  1. Assignment of PLC Programming With Ladder Logic
    3m 16s

  1. Interview Questions
    7m 9s

  1. Career Guideline
    2m 42s
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