Inst ToolsInst ToolsInst Tools
  • Courses
  • Automation
    • PLC
    • Control System
    • Safety System
    • Communication
    • Fire & Gas System
  • Instrumentation
    • Design
    • Pressure
    • Temperature
    • Flow
    • Level
    • Vibration
    • Analyzer
    • Control Valve
    • Switch
    • Calibration
    • Erection & Commissioning
  • Interview
    • Instrumentation
    • Electrical
    • Electronics
    • Practical
  • Q&A
    • Instrumentation
    • Control System
    • Electrical
    • Electronics
    • Analog Electronics
    • Digital Electronics
    • Power Electronics
    • Microprocessor
  • Request
Search
  • Books
  • Software
  • Projects
  • Process
  • Tools
  • Basics
  • Formula
  • Power Plant
  • Root Cause Analysis
  • Electrical Basics
  • Animation
  • Standards
  • 4-20 mA Course
  • Siemens PLC Course
Reading: 1 to 8 Demultiplexer PLC ladder diagram
Share
Font ResizerAa
Inst ToolsInst Tools
Font ResizerAa
  • Courses
  • Design
  • PLC
  • Interview
  • Control System
Search
  • Courses
  • Automation
    • PLC
    • Control System
    • Safety System
    • Communication
    • Fire & Gas System
  • Instrumentation
    • Design
    • Pressure
    • Temperature
    • Flow
    • Level
    • Vibration
    • Analyzer
    • Control Valve
    • Switch
    • Calibration
    • Erection & Commissioning
  • Interview
    • Instrumentation
    • Electrical
    • Electronics
    • Practical
  • Q&A
    • Instrumentation
    • Control System
    • Electrical
    • Electronics
    • Analog Electronics
    • Digital Electronics
    • Power Electronics
    • Microprocessor
  • Request
Follow US
All rights reserved. Reproduction in whole or in part without written permission is prohibited.
Inst Tools > Blog > PLC Tutorials > 1 to 8 Demultiplexer PLC ladder diagram

1 to 8 Demultiplexer PLC ladder diagram

Implement 1:8 Demultiplexer in PLC using ladder diagram programming language. Learn PLC programming using examples.

Last updated: November 3, 2023 2:02 pm
Editorial Staff
PLC Tutorials
No Comments
Share
4 Min Read
SHARE

This is a PLC Program to implement 1:8 De-multiplexer.

Contents
1 to 8 Demultiplexer PLCProblem DiagramProblem Solution1:8 DeMultiplexer Truth TableList of inputs/outputsLadder diagram for 1:8 DemultiplexerProgram Description

1 to 8 Demultiplexer PLC

Problem Description

Implement 1:8 Demultiplexer in PLC using ladder diagram programming language.

Problem Diagram

PLC Ladder Logic for Demultiplexer

Problem Solution

Demultiplexer has one data input Di and three select inputs S0, S1 and S3 and 8 outputs Q0.0 to Q0.7.

To select “n” outputs, we need m select lines such that 2^m = n. Depending on the output. The selection of one of the n outputs is done by the select pins.

Realize the de-multiplexer using Logic Gates. Here we will configure de-multiplexer using ladder language.

When three switches are OFF and Di input is pressed then first output will be ON.As per table we can activate output by switching combination.

1:8 DeMultiplexer Truth Table

DeMultiplexer PLC Truth Table

List of inputs/outputs

List of inputs

  • S0 :- I0.0
  • S1 :- I0.1
  • S3 :- I1.0

List of outputs

  • Output1 :- Q0.0
  • Output 2 :- Q0.1
  • Output 3 :- Q0.2
  • Output 4 :- Q0.3
  • Output 5 :- Q0.4
  • Output 6 :- Q0.5
  • Output 7 :- Q0.6
  • Output 8 :- Q0.7

Ladder diagram for 1:8 Demultiplexer

PLC Ladder Logic for Demultiplexer - 1
Demultiplexer PLC Ladder
Demultiplexer PLC Ladder Diagram
Demultiplexer PLC Logic
PLC Demultiplexer Logic
PLC Demultiplexer Example
PLC Demultiplexer
PLC Demultiplexer 1 to 8

Program Description

For this application, we used S7-1200 PLC and TIA portal software for programming.

Network 1:

If Data bit (I2.0) is ON and all inputs are OFF (I0.0=0, I0.1=0 and I0.2=0), Output 1 (Q0.0) will be ON.

Network 2:

If data bit (I2.0) is ON, input 1 (I0.0) OFF, input 2 (I0.1) OFF and input 3 (I0.2) is ON, Output 2 (Q0.1) will be ON.

Network 3:

If data bit (I2.0) is ON, input 1 (I0.0) OFF, input 3 (I0.2) OFF and input 2 (I0.1) is ON, Output 3 (Q0.2) will be ON.

Network 4:

If data bit (I2.0) is ON, input 2 (I0.1) ON, input 3 (I0.2) ON and input 1 (I0.0) is OFF, Output 4 (Q0.3) will be ON.

Network 5:

If input 2 (I0.1) and input 3 (I0.2) are OFF and input 1 (I0.0) is ON, Output 5 (Q0.4) will be ON.

Network 6:

If data bit (I2.0) is ON, input 1 (I0.0), input 3 (I0.2) ON and input 2 (I0.1) is OFF, Output 6 (Q0.5) will be ON.

Network 7:

If data bit (I2.0) is ON, input 1 (I0.0), input 2 (I0.1) ON and input 3 (I0.2) is OFF, Output 7 (Q0.6) will be ON.

Network 8:

If data bit (I2.0) is ON, input 1 (I0.0), input 2 (I0.1) and input 3 (I0.2) ON, Output 8 (Q0.7) will be ON.

Note :- Above application may be different from actual application. This example is only for explanation purpose only. We can implement this logic in other PLC also. This is the simple concept of 1:8 Demultiplexer, we can use this concept in other examples also.

All parameters considered in example are for explanation purpose only, parameters may be different in actual applications. Also all interlocks are not considered in the application.

Author: Bhavesh

If you liked this article, then please subscribe to our YouTube Channel for PLC and SCADA video tutorials.

You can also follow us on Facebook and Twitter to receive daily updates.

Read Next:

  • PLC 3 to 8 Line Decoder
  • Matrix Keypad works ?
  • PLC T Flip Flop Logic
  • Flow Totalizer in PLC
  • SR Flip Flop using PLC
Don't Miss Our Updates
Be the first to get exclusive content straight to your email.
We promise not to spam you. You can unsubscribe at any time.
Invalid email address
You've successfully subscribed !

Continue Reading

Timer in Studio 5000 – TON, TOF, RTO
Implement UDT in PLC Programming: User-Defined Data Type
How to Create Project in Wonderware Intouch?
Latched and Momentary Operation of Motor PLC Program
Free Siemens PLC Training Course
PLC Hoist Crane Programming: Example using Schneider
Share This Article
Facebook Whatsapp Whatsapp LinkedIn Copy Link
Share
Leave a Comment

Leave a Reply Cancel reply

Your email address will not be published. Required fields are marked *

Stay Connected

128.3kFollowersLike
69.1kFollowersFollow
210kSubscribersSubscribe
38kFollowersFollow

Categories

Explore More

PLC Wiring Questions for Technicians and Engineers
Operator Interface for SCADA System
How is Data Stored in Standard Modbus Protocol?
Hardware Troubleshooting Steps for PLC Automation Systems
How to Interchange ON Delay Timer and OFF Delay Timer in a PLC
Tia Portal – OB30 Cyclic Interrupt Organization Block
PLC Program for Automatic Parameter Initialization When Power UP
PLC Programming Course Online Free

Keep Learning

PLC Program for Filling Operation

PLC Program for Continuous Filling Operation

Omron PLC programs

Daily Alarm PLC Program using Real-Time Clock

PLC Programming Best Practices and Tips

PLC Programming Best Practices and Tips

Draw a Ladder Logic to control a bulb using push buttons in PLC

Concept of Latching in PLC

Relay Permissive and interlock circuits

Basics of Permissive and Interlock Circuits

PLC Program to Control Motor Speed using VFD Drive

Motor Speed Control using VFD and PLC Programming

Types of Cables used in Industrial Automation

Types of Cables used in Industrial Automation

PLC based 4 Way Traffic Light Control System

PLC based 4 Way Traffic Light Control System

Learn More

Safety Tips When Working With Electricity

Safety Tips When Working With Electricity

Safety PLC Programming steps

Safety Door Interlock PLC Program

Diaphragm Pump

What is a Diaphragm Pump?

Hybrid Level Transmitter Principle

Hybrid Level Measurement Principle, Selection, Installation, Limitations and Calibration

Centrifugal Compressor outage reduced

Centrifugal Compressor Outage Reduced – Root Cause Analysis

Power Electronics Objective Questions

Power Transistor Objective Questions

Zigbee Projects

Zigbee Based Project Ideas and List

Reduce Control Valve Noise

How to Reduce the Control Valve Noise?

Menu

  • About
  • Privacy Policy
  • Copyright

Quick Links

  • Learn PLC
  • Helping Hand
  • Part Time Job

YouTube Subscribe

Follow US
All rights reserved. Reproduction in whole or in part without written permission is prohibited.
Welcome Back!

Sign in to your account

Username or Email Address
Password

Lost your password?