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: PLC Program for Artificial Fishpond Water Level Monitoring System
Share
Notification Show More
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 > PLC Program for Artificial Fishpond Water Level Monitoring System

PLC Program for Artificial Fishpond Water Level Monitoring System

PLC program for an artificial fishpond water level monitoring system explained with the ladder logic concept for beginners.

Last updated: November 3, 2023 10:59 am
Editorial Staff
PLC Tutorials
2 Comments
Share
5 Min Read
SHARE

PLC program for an artificial fishpond water level monitoring system explained with the ladder logic concept for beginners.

Contents
Water Level Monitoring SystemProblem DiagramProblem SolutionList of Inputs/OutputsPLC Ladder Logic for artificial fishpond water level monitoringLogic ExplainedResult

Water Level Monitoring System

Problem Description

Implement a PLC program for an artificial fishpond water level monitoring system.

Feed or drain the water of the artificial fishpond when the water level is below the normal level and activate the alarm when the water level is above or below the level.

Problem Diagram

PLC Program for Fishpond Water Level Monitoring System

Problem Solution

This problem can be solved by using simple automation.

Here we considered one artificial fishpond, four level sensors and three pumps for system monitor & control.

Here we will write program that will control whole system. System will maintain normal level and it does not allow water level to go up or down to maintain the normal level.

If water level goes down from the normal level then system will feed water in the fishpond and if water level goes up from the normal level then system will drain water from the fishpond.

List of Inputs/Outputs

Inputs List

  • Level Sensor, L0 : I0.0 (L0=1 when the water level is above the alarm level).
  • Level Sensor, L1 : I0.1 (L1=1 when the water level is above the normal level)
  • Level Sensor, L2 : I0.2 (L2=1 when the water is above the normal level)
  • Level Sensor, L3 : I0.3 (L3=1 when the water is above the alarm level)

Outputs List

  • Feeding pump :- Q0.0
  • Drainage pump 1 :- Q0.1
  • Drainage pump 2 :- Q0.2
  • Alarm lamp :- Q0.3

PLC Ladder Logic for artificial fishpond water level monitoring

Water Level Monitoring System
PLC Water Level Logic
Water Level Ladder Diagram
PLC Water Level
PLC Timer Flash
PLC Lamp Control

Logic Explained

In this problem we will consider S7-300 PLC and TIA portal software for programming.

Network 1:

In this network, we have written logic for drainage pump 1 (Q0.1). When water level is above the highest level of alarm level (L3 = I0.3), at that time drainage pump 1 (Q0.1) will be ON.

Network 2:

If water level is below the alarm level then feeding pump (Q0.0) should be start. So here we have taken NC contact of L1 (I0.1), when level is below the normal level then feeding pump (Q0.0) will ON and fill the water in the fishpond.

Network 3:

If water level is above the normal level then the drainage pump 2 (Q0.2) will be ON. Here water level is above than the normal level, not alarm level, so only drainage pump2 (Q0.1) will work.

Network 4:

Here we have used two conditions in OR gate so either level is below normal level (L1 = I0.1) or above normal level (L1 = I0.1) then flashing circuit will be activated and alarm lamp (Q0.3) will be ON.

Network 5:

Timer 2 for flashing circuit.

Network 6:

Here we have used two conditions in OR gate so either level is below normal level (L1=01) or above normal level then alarm lamp (Q0.3) will flash automatically on 5 second interval.

Level is above alarm level (L0=1, L1=1, L2=1, L3=1) or below alarm level (L0=0, L1=0, L2=0, L3=0) THEN alarm lamp will flash automatically on 5 seconds interval.

Level is above alarm level (L0=0, L1=0, L2=0, L3=0) then drainage pump 1&2 will start and if water level is above normal then only drainage pump 2 will start.

Note:- Above example is for explanation purpose only, not all parameters or interlocks are considered. It is not necessary to use S7-300 PLC for this simple logic, we have used this PLC for our discussion purpose.

Result

PLC Water Level Programming

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 Program for IEC timers
  • Daily Production PLC Logic
  • PLC Questions & Answers
  • Automatic Bottle Rejection System
  • Water filling & Discharging Process
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

Main differences between Sinking and Sourcing Circuits
Use of Isolators and Barriers in Electrical Panel
Tank Filling and Emptying using Intouch Scada Script
Ladder Logic Programming Examples
Problem on PLC, HMI, VFD, and Motor Circuit
UPS Working Principle and Types – Offline and Online UPS Systems
Share This Article
Facebook Whatsapp Whatsapp LinkedIn Copy Link
Share
2 Comments
  • Ryan says:
    July 10, 2018 at 11:49 am

    Is Q0.1 a feed or drain pump?

    Reply
  • SUNIL YADAV says:
    July 11, 2018 at 1:56 am

    feed pump-this pump used to fill any tank. AS example boiler feed pump fill water in Boiler Drum for steam making process.Another simple example is-our home roof top water vessel or tank as motor start water feed (fill) in tank.

    Drain pump- this pump uses for empty any tank or vessel. Drain pump transfer water from one tank to another

    Reply

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

3 to 8 Line Decoder PLC Ladder Diagram
VFD Commissioning and Testing Procedure (Variable Frequency Drive)
Ladder Logic Vs. Other Programming Languages – PLC Basics
Waste-Burning System OMRON PLC Program Example
Establishing a Modbus Driver for SCADA Indusoft Web Studio
PLC Functional Block Diagram for Logic Gates
PLC Cooking Timer Example for Kitchen Automation
How to Select a SCADA for New PLC Project?

Keep Learning

memory types in siemens plc

Memory Structure of Siemens PLC

PLC Program Upload

How to Upload Siemens PLC Programs?

Split Range Control Block Diagram

Split Range Control Application using PLC Ladder Logic

Siemens PLC programming: BCD, Integer, Double Integer, Real

Analog Measurement using Ladder Logic

Analog Measurement using Ladder Logic

Delta HMI and VFD Control with Modbus

Delta HMI and VFD Control with Modbus

ESG in Industrial PLC Automation Systems

ESG in Industrial PLC Automation Systems

Learn about PLC, DCS, RTU, SCADA, and PAC

Learn about PLC, DCS, RTU, SCADA, and PAC

Learn More

PLC Timer Programming Examples on Coffee Machine

PLC Timer Practice Exercise: Coffee Machine Programming

pressure transmitter calibration setup

Why Pressure Vessel Connected to Tubing System?

Control of Lube Oil Pressure and Flow

Lubrication Control System – Turbo Alternator

PlantPAx Select Add components into Project

How to Import PlantPAx Library?

Allen Bradley PLC Interview Questions & Answers

Allen Bradley PLC Interview Questions and Answers

Ultrasonic-Level-Transmitter-Animation

Ultrasonic Level Transmitter Animation

Layer-2 and Layer-3 Network Switches

Layer-2 and Layer-3 Network Switches

Types of Scan Time in a PLC

Programmable Logic Controller (PLC) Scan Time – Types, Theory

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?