Nancyvarkey at 06:54, 2 August 2021

2021-08-02T06:54:09Z

Nirmala Venkat at 09:28, 29 July 2021

2021-07-29T09:28:40Z

Nirmala Venkat: Created page with " {| border="1" |- || '''VISUAL CUE''' || '''NARRATION''' |- || Slide 1: || Welcome to the Spoken Tutorial on '''Overview of OpenPLC with LDmicro.''' |- || Slide 2: Learning..."

2021-07-29T09:26:44Z

Created page with " {| border="1" |- || '''VISUAL CUE''' || '''NARRATION''' |- || Slide 1: || Welcome to the Spoken Tutorial on '''Overview of OpenPLC with LDmicro.''' |- || Slide 2: Learning..."

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{| border="1"
|-
|| '''VISUAL CUE'''
|| '''NARRATION'''
|-
|| Slide 1:
|| Welcome to the Spoken Tutorial on '''Overview of OpenPLC with LDmicro.'''
|-
|| Slide 2: Learning Objectives
|| In this tutorial, we will learn about
*'''PLC'''
* '''OpenPLC''' and '''LDmicro'''
*Features of '''OpenPLC'''
*What you can expect in this series
*The content available in various tutorials in this series
*How to use the '''Code files''' given in each tutorial
|-
|| Slide 3: System Requirements
|| To record this tutorial I’m using
*'''Ubuntu Linux''' 18.04 operating system
|-
|| Slide 4: Pre-requisites
|| To follow this tutorial you should have the basic knowledge of
*'''Electronics''' and
*'''PLC'''
|-
||
||First let us understand '''PLC'''.
|-
|| Slide 5(a):

Introduction to PLC:
||
*'''PLC''' stands for '''Programmable Logic Controller.'''
*'''PLC''' is an industrial '''digital computer'''.
*It is used for the automation of various '''electro-mechanical''' processes.

|-
|| Slide 5(b):

Introduction to PLC:
||
*A '''PLC program''' is usually written on a '''computer''' and then it is downloaded to the '''controller''' .
*'''PLC '''is programmed using special programming languages like''' ladder logic, function blocks''' etc.

|-
|| Slide 6:

Embedded devices vs PLC

||
*Now you may ask, “Why not use '''embedded devices''' for these processes?”
*'''PLCs''' are designed to be shock-resistant, suitable for harsh environments.
|-
||
|| Now we will learn about '''OpenPLC'''.
|-
|| Slide 7:

About OpenPLC
||
*'''OpenPLC''' is an affordable '''open source hardware''' developed at''' IIT Bombay''' by the '''FOSSEE''' team.
*It is designed to get hands-on '''PLC programming''' experience at an affordable cost.
*'''OpenPLC''' can be programmed using '''ladder logic'''.
|-
||
|| Now we will learn about '''LDmicro'''
|-
|| Slide 8:

About LDmicro
||
*'''LDmicro''' is an '''open source software'''.
*It is used to draw '''ladder diagrams''' and generate '''.hex '''files for '''OpenPLC'''.
*'''LDmicro''' was available only for '''Windows''' initially.
*The '''FOSSEE''' team from '''IIT Bombay''' ported it and made it available for '''Linux OS '''also.

|-
||
|| Let us go to the '''OpenPLC''' website developed by the '''FOSSEE''' team.

Please go through the website for detailed information on

'''OpenPLC'''.

In the''' Home page''' we can read more information about '''PLC''' and the motive behind '''OpenPLC'''.

The '''Resources''' page has '''git repository links''' for '''hardware''' designs and '''LDmicro''' source code.

The '''Downloads''' page has links to download '''LDmicro, AVRDUDE '''and''' USBasp drivers.'''
|-
|| Slide 9:

Features of OpenPLC
|| '''Features of OpenPLC'''
*'''OpenPLC''' has all the capabilities of an industrial '''PLC''' and is simpler to work with.
*It is a '''modular hardware'''.
*It uses '''ladder logic programming''', which is one of the easiest and efficient.
*For example, it can be interfaced with '''electronic modules''' like '''relay modules''' etc.
*These are readily available in the market.
|-
|| Slide 10:

What can you expect in this series?

|| What can you expect in this series?
*Each tutorial is demonstrated with simple experiments using '''instructions''' of '''LDmicro'''.
*'''LDmicro''' has a '''simulation''' feature.
*It allows us to check the code before uploading it on to the '''OpenPLC''' '''Mainboard'''.
*This is helpful to avoid any '''hardware''' damage.
*Once we are sure that the '''logic''' is working, we can '''compile''' the '''logic'''.
*That is to generate the '''.hex file''' for the same in '''LDmicro''' to upload it to '''OpenPLC Mainboard'''.
*In this series, we have used some custom '''modules''' such as
** '''Traffic Light module'''
** '''Switchboard module'''
** '''Heater module'''
*Using these '''modules''' we will check the working of the '''ladder logic''' that we have created on '''hardware'''.

|-
|| Slide 11:

Who can use OpenPLC?
|| '''OpenPLC''' can be used by anyone who is interested in '''PLC programming'''.

For example:
*'''Polytechnic, Engineering''' and other '''technical''' students
*any '''hardware''' professional
*individuals who are interested in hands-on experimentation.

|-
||
|| Now, we will briefly go through the individual tutorials in this series.
|-
|| Show Installation tutorials of windows and Linux
|| The first two tutorials in this series explains-

*How to '''install LDmicro''' on''' Ubuntu Linux OS''' and '''Windows OS.'''
*How to '''install AVRDUDE''' and '''USBasp drivers. '''

|-
|| Introduction to LDmicro

Simulation and Compilation

OpenPLC Mainboard

Programming OpenPLC
|| Next four tutorials are about
*How to navigate and create a '''ladder diagram '''in '''LDmicro'''.
*How to '''simulate''' and '''compile''' that '''ladder diagram''' in '''LDmicro'''.
*About '''OpenPLC Mainboard''' and
*How to '''program''' it with the''' ladder diagram''' created.
|-
|| OpenPLC Traffic Light and Switchboard Modules
|| Then we will learn about
*'''OpenPLC Traffic Light module''' and '''OpenPLC Switchboard module '''and
*How these '''modules''' can be interfaced with '''OpenPLC Mainboard.'''

|-
|| Normal Coil

Normal Contact

Negated Coil & Negated Contact
|| In the next four tutorials,

*We will learn about the most basic instructions of''' ladder logic, Contacts and Coils.'''
*We will learn about the working of '''Normal Coil, Normal Contact, Negated Coil and Negated Contact'''
*These are explained with simple examples using '''switch''' and '''LED'''.

|-
|| Implementing NOT & AND logic gates

Implementing OR & XOR logic gates

Internal Relay & Output pin

SET & RESET Coils
|| After this, we will learn
*How to implement basic '''logic gates''' like '''NOT, AND, OR and XOR '''using''' Contacts and Coils.'''
*Also about '''Internal relay''' and '''Output pin'''
*Working of the '''SET''' and '''RESET Coils'''.

|-
||
|| All the above topics are covered under the '''Basic level'''.

Next comes the '''Intermediate level''' tutorials.
|-
|| One shot instructions

Arithmetic instructions

Move instructions

Compare instructions
|| Here we will learn about
# '''Arithmetic instructions'''
# '''Move instruction '''and
# '''Compare instructions'''

We will learn about the importance of '''cycle''' time and how to create a '''virtual counter'''.
|-
|| TON & TOFF Instructions

RTO Timer Instruction
||
*Next we will learn about the different types of '''timers''' available in '''LDmicro'''.
*The difference between each '''timer,''' particularly between '''TON and RTO'''.
*Also we will learn when to use '''RESET''' instruction.

|-
|| CTU Counter

CTD Counter

CTC Counter
||
*After that we will learn about the different types of '''counters''' available in '''LDmicro'''.
*We will learn how to create '''up-down counter''' using '''CTU and CTD counters.'''

|-
|| OpenPLC Heater module

AD Converter Read Instruction

PWM Instruction
||
*Next we will learn about the working of '''OpenPLC Heater module.'''
*How it can be used to learn some '''analog''' instructions available in '''LDmicro'''.
*One of the instructions is''' A/D converter read'''.
*As an example we will try to regulate the temperature of the '''resistor''' on the''' Heater module. '''
*Then we will learn about '''PWM''' instruction by controlling the speed of the fan on the '''Heater module.'''

|-
|| Slide 12: How to use the Code Files?
|| How to use the Code files?
*Code files are available in the '''Code files''' link of that particular tutorial.
*The '''.ld '''file can be accessed by opening them in '''LDmicro''' using '''‘Open’''' option under '''‘File’''' menu.
*The '''ladder diagram''' can then be '''compiled''' to generate a '''.hex''' file.
*Or you can download the''' .hex''' file from '''Code files''' which can be uploaded to the '''Mainboard''' directly.
*It is not recommended to download the '''Code files''' without understanding the working.
*Follow all the steps as shown in each tutorial and understand the working of each instruction.
*It is the better way of learning.
|-
||
|| This brings us to the end of this tutorial.

|-
Let us summarize.
|-
|| Slide 13: Summary

|| In this tutorial, we have learnt about
*'''PLC'''
* '''OpenPLC''' and '''LDmicro'''
*Features of '''OpenPLC'''
*What you can expect in this series
*The content available in various tutorials in this series
*How to use the '''Code files''' given in each tutorial

|-
|| Slide 14:

About Spoken Tutorial project
|| The video at the following link summarizes the Spoken Tutorial project.

Please download and watch it
|-
|| Slide 15:

Spoken Tutorial workshops
|| The''' Spoken Tutorial Project''' team conducts workshops using spoken tutorials and
*gives certificates on passing online tests.

For more details, please write to us.
|-
|| Slide 16:

Answers for THIS Spoken Tutorial
||
*Do you have questions in THIS Spoken Tutorial?
*Please visit this site.
*Choose the minute and second where you have the question.
*Explain your question briefly.
*The Spoken Tutorial project will ensure an answer.
*You will have to register to ask questions.
|-
|| Slide 17:

Forum for specific questions:
||
*The Spoken Tutorial forum is for specific questions on this tutorial.
*Please do not post unrelated and general questions on them.
*This will help reduce the clutter.
*With less clutter, we can use these discussions as instructional material.
|-
|| Slide 18:

Forum for specific questions:
||
* Do you have any general / technical questions on OpenPLC?
* Please visit the FOSSEE forum and post your question.

|-
|| Slide 19:

Acknowledgement
|| Spoken Tutorial Project is funded by MHRD, Government of India.
|-
|| Slide 20:

Thank you slide
|| This tutorial has been contributed by FOSSEE and Spoken Tutorial Project, IIT Bombay.
And this is Harsha Priyanka from FOSSEE team, signing off.
Thanks for watching.
|-
|}

@@ Line 79: / Line 79: @@
 |-
-||
+||Open web browser >> type openplc.fossee.in
-|| Let us go to the '''OpenPLC''' website developed by the '''FOSSEE''' team.
+|| Let us go to the '''OpenPLC website''' developed by the '''FOSSEE''' team.
-Please go through the website for detailed information on
+Please go through the '''website''' for detailed information on '''OpenPLC'''.
-'''OpenPLC'''.
+|-
+||Homepage
-In the''' Home page''' we can read more information about '''PLC''' and the motive behind '''OpenPLC'''.
+||In the''' Home page''' we can read more information about '''PLC''' and the motive behind '''OpenPLC'''.
+|-
-The '''Resources''' page has '''git repository links''' for '''hardware''' designs and '''LDmicro''' source code.
+||Resources page
+||The '''Resources''' page has '''git repository links''' for '''hardware''' designs and '''LDmicro source code'''.
-The '''Downloads''' page has links to download '''LDmicro, AVRDUDE '''and''' USBasp drivers.'''
+|-
 |-
 || Slide 9:
@@ Line 127: / Line 129: @@
 For example:
 *'''Polytechnic, Engineering''' and other '''technical''' students
-*any '''hardware''' professional
+*Any '''hardware''' professional
-*individuals who are interested in hands-on experimentation.
+*Individuals who are interested in hands-on experimentation.
 |-
@@ Line 198: / Line 200: @@
 Compare instructions
 || Here we will learn about
 # '''Arithmetic instructions'''
 # '''Move instruction '''and

@@ Line 231: / Line 231: @@
 *Next we will learn about the working of '''OpenPLC Heater module.'''
 *How it can be used to learn some '''analog''' instructions available in '''LDmicro'''.
-*One of the instructions is''' A/D converter read'''.
+*One of the instructions is''' A to D converter read'''.
 *As an example we will try to regulate the temperature of the '''resistor''' on the''' Heater module. '''
 *Then we will learn about '''PWM''' instruction by controlling the speed of the fan on the '''Heater module.'''

OpenPLC-with-LDmicro/C2/Overview-of-OpenPLC-with-LDmicro/English - Revision history

Nancyvarkey at 06:54, 2 August 2021

Nirmala Venkat at 09:28, 29 July 2021

Nirmala Venkat: Created page with " {| border="1" |- || '''VISUAL CUE''' || '''NARRATION''' |- || Slide 1: || Welcome to the Spoken Tutorial on '''Overview of OpenPLC with LDmicro.''' |- || Slide 2: Learning..."