Basic of PLC PLC Beginner

LADDER Practical Exercises – Lesson1

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Hello, today I am going to teach people to program PLC in LADDER language with the simplest practical problems so that new PLC students can easily learn

PLC has 2 programming methods: linear programming for simple problems and structured programming for complex problems.

To facilitate programming as well as test results and solve programming problems, we program PLC into Networks. We divide each small work piece into a Networks, when working PLC will automatically link these Networks together. The PLC will work from first network to last network, respectively. In larger articles, we can also divide the program into different subroutines for ease of programming and error correction.

PLC is a programmable device, so there are many programming options, in this article is the simplest programming method for you to easily understand PLC programming, this is my own method. so if there’s any, please sympathize.

In this series of articles, I use OMRON’s CX-Programmer to guide you

You can download the software here : Download CX-Programer

  • Practical Exercises 1 : How does a 3 phase squirrel cage motor work?

# Motivation diagram

# Devices used in the circuit include :

+ 1 Aptomat

+ 1 Start button

+ 1 Stop button

+ 1 Thermal overload relay

# The table specifies the address

# PLC program

# Video simulation program

  • Practical Exercises 2 : How reversal of rotation of squirrel cage induction motors?

# Motivation diagram

# Devices used in the circuit include :

+ 1 Aptomat

+ 1 Forward start button

+ 1 Reverse start button

+ 1 Stop button

+ 1 Thermal overload relay

# The table specifies the address

# PLC program

+ Network1

+ Network2

+ Network3

# Video simulation program

  • Practical Exercises 3 : How does a star delta circuit work?

# Motivation diagram

# The table specifies the address

# PLC program

+ Network1

+ Network2

+ Network3

# Video simulation program

  • Practical Exercises 4 : How does a 4 stroke boat motor?

# Motivation diagram

# The table specifies the address

# PLC program

+ Network1

+ Network2

+ Network3

+ Network4

+ Network5

# Video simulation program

  • Practical Exercises 5 : Forward Reverse Star Delta Starter Control 

# Motivation diagram

# The table specifies the address

# PLC program

+ Network1

+Network2

+Network3

# Video simulation program

The first tutorial here is the end, welcome to read the second article. Sign up for website announcements and share them if it helps

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