OpenPLC-version1-with-LDmicro/C2/Normal-Coil/English - Revision history

Priyanka.guntaka123 at 11:09, 19 October 2020

2020-10-19T11:09:51Z

Nancyvarkey at 10:51, 27 August 2020

2020-08-27T10:51:09Z

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Priyanka.guntaka123: Created page with " {| style="border-spacing:0;" | style="border:1pt solid #000000;padding:0.176cm;"| '''Visual Cue''' | style="border:1pt solid #000000;padding:0.176cm;"|
2020-08-12T11:34:16Z

Created page with " {| style="border-spacing:0;" | style="border:1pt solid #000000;padding:0.176cm;"| <center>'''Visual Cue'''</center> | style="border:1pt solid #000000;padding:0.176cm;"| <cent..."

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{| style="border-spacing:0;"
| style="border:1pt solid #000000;padding:0.176cm;"| <center>'''Visual Cue'''</center>
| style="border:1pt solid #000000;padding:0.176cm;"| <center>'''Narration'''</center>

|-
| style="border:1pt solid #000000;padding:0.176cm;"| Slide 1:
| style="border:1pt solid #000000;padding:0.176cm;"| Welcome to the spoken tutorial on '''Normal Coil.'''

|-
| style="border:1pt solid #000000;padding:0.176cm;"| Slide 2: Learning Objectives

* Normal Coil

| style="border:1pt solid #000000;padding:0.176cm;"| In this tutorial, we will learn about the working of

* '''Normal Coil '''
|-
| style="border:1pt solid #000000;padding:0.176cm;"| Slide 3: System Requirements

* Ubuntu Linux 18.04''' '''OS
* LDmicro
* OpenPLC version 1 Mainboard
* 24V, 2A SMPS
* USBasp programmer
* Traffic Light module
* Switchboard module

| style="border:1pt solid #000000;padding:0.176cm;"| To record this tutorial I am using:

* '''Ubuntu Linux 18.04''' operating system
* '''LDmicro'''
* '''OpenPLC version1 Mainboard'''
* 24V, 2A '''SMPS'''
* '''USBasp''' programmer
* '''Traffic Light''' module and
* '''Switchboard''' module

|-
| style="border:1pt solid #000000;padding:0.176cm;"| Slide 4: Pre-requisites

* Program OpenPLC V1 Mainboard and
* Interface OpenPLC modules with Mainboard.

If not, please refer to the relevant tutorials from [https://spoken-tutorial.org/ Home | spoken-tutorial.org]
| style="border:1pt solid #000000;padding:0.176cm;"|
* To follow this tutorial, you should know how to
program '''OpenPLC V1 Mainboard''' and
interface '''OpenPLC''' modules with '''Mainboard'''.
* If not, please refer to the relevant tutorials in this series on this website.

|-
| style="border:1pt solid #000000;padding:0.176cm;"| Slide 5: Prerequisites - Hardware setup

hardware-prerequisite.jpg
| style="border:1pt solid #000000;padding:0.176cm;"| Connect''' SMPS''' and '''USBasp''' to the '''Mainboard''' as shown in the picture.

Keep these connections throughout this tutorial.

|-
| style="border:1pt solid #000000;padding:0.176cm;"| Open LDmicro
| style="border:1pt solid #000000;padding:0.176cm;"| Let us open '''LDmicro'''.

|-
| style="border:1pt solid #000000;padding:0.176cm;"| Click ‘Instructions -> Insert Coil’
| style="border:1pt solid #000000;padding:0.176cm;"| Insert a '''Coil''' from '''Instructions''' as shown.

|-
| style="border:1pt solid #000000;padding:0.176cm;"|
| style="border:1pt solid #000000;padding:0.176cm;"| We can observe that '''Coil''' is an output instruction.

|-
| style="border:1pt solid #000000;padding:0.176cm;"| Double-click on the coil
| style="border:1pt solid #000000;padding:0.176cm;"| Double-click on the '''Coil'''.

|-
| style="border:1pt solid #000000;padding:0.176cm;"| Highlight ‘Type’ and ‘Source’

| style="border:1pt solid #000000;padding:0.176cm;"| A dialogue box opens.

Here we can see two columns named '''‘Type’''' and '''‘Source’'''.

|-
| style="border:1pt solid #000000;padding:0.176cm;"| Point to the types
| style="border:1pt solid #000000;padding:0.176cm;"| We can see there are four types of '''coils'''.

They are '''Normal''', '''Negated''', '''SET-Only''' and '''RESET-Only''' '''Coils'''.

These coils have two source types which are''' Pin''' '''on MCU''' and '''Internal Relay'''.

|-
| style="border:1pt solid #000000;padding:0.176cm;"| Point to Normal, Pin on MCU
| style="border:1pt solid #000000;padding:0.176cm;"| By default, the type of the coil is set to '''‘Normal’''' and source to '''‘Pin on MCU’'''.

'''Pin on MCU''' means that the coil represents a pin on the microcontroller.

|-
| style="border:1pt solid #000000;padding:0.176cm;"|
| style="border:1pt solid #000000;padding:0.176cm;"| Don’t change them.

Keep the default settings as it is.

|-
| style="border:1pt solid #000000;padding:0.176cm;"| Point to other types
| style="border:1pt solid #000000;padding:0.176cm;"| We will learn about other types of '''Coils''' and source types in the later tutorials.

|-
| style="border:1pt solid #000000;padding:0.176cm;"| Rename the coil as LED. Click the OK button.
| style="border:1pt solid #000000;padding:0.176cm;"| Rename the''' Coil''' as '''LED''' and click on the OK button.

Remember that '''LDmicro''' is case sensitive.

|-
| style="border:1pt solid #000000;padding:0.176cm;"| Highlight the rung
| style="border:1pt solid #000000;padding:0.176cm;"| Note that the Coil is directly connected to the positive rail.

So, the input to the Coil is logic 1.

|-
| style="border:1pt solid #000000;padding:0.176cm;"|
| style="border:1pt solid #000000;padding:0.176cm;"| Now we will check the working of this logic.

|-
| style="border:1pt solid #000000;padding:0.176cm;"| Click ‘Simulate -> Simulation mode’ >> Click ‘Simulate -> Real-time simulation’
| style="border:1pt solid #000000;padding:0.176cm;"| Let us turn on the simulation mode.

For that, click '''Simulate''' and then on '''Simulation mode.'''

Next, start real-time simulation as shown.

|-
| style="border:1pt solid #000000;padding:0.176cm;"| Highlight state of YLED in the I/O list
| style="border:1pt solid #000000;padding:0.176cm;"| Observe the state of '''YLED''' in the '''I/O list.'''

|-
| style="border:1pt solid #000000;padding:0.176cm;"| Highlight the state of LED in I/O list at the bottom of the screen
| style="border:1pt solid #000000;padding:0.176cm;"| We can observe the state of '''YLED''' is 1.

That is for a '''Normal Coil''' when the input is true, the output is also true.

|-
| style="border:1pt solid #000000;padding:0.176cm;"| Click 'Simulate -> Halt Simulation' >> Click 'Simulate -> Simulation Mode'
| style="border:1pt solid #000000;padding:0.176cm;"| Now, turn off the simulation mode.

For that, click '''Simulate''' and then on '''Halt Simulation.'''

Then click '''Simulate''' and '''Simulation Mode'''

|-
| style="border:1pt solid #000000;padding:0.176cm;"|
| style="border:1pt solid #000000;padding:0.176cm;"| Now let us compile the logic.

The detailed steps on how to compile and save the logic are explained in the earlier tutorials.

|-
| style="border:1pt solid #000000;padding:0.176cm;"| Click on Settings >> Click on Microcontroller >> Select AVR ATmega16 40-PDIP

Click on Settings >> Click on MCU parameters >> Change Crystal frequency to 16 >>Click OK button
| style="border:1pt solid #000000;padding:0.176cm;"| Click on '''Settings''' and select the microcontroller '''AVR ATmega16 40-PDIP.'''

Adjust its parameters as shown here.

|-
| style="border:1pt solid #000000;padding:0.176cm;"| Double-click on YLED in I/O list >> Select PA0 >> Click OK button
| style="border:1pt solid #000000;padding:0.176cm;"| Double click on the YLED in the I/O list.

Then, assign '''pin''' '''PA0''' to the coil ‘'''YLED'''’.

|-
| style="border:1pt solid #000000;padding:0.176cm;"| Click on Compile >> Click on Compile >> Go to Desktop/LDmicro folder >> Rename it as ‘normalcoil.hex’ >> Click on Save.

Click OK button
| style="border:1pt solid #000000;padding:0.176cm;"| Compile the logic and save the hex file as ‘'''normalcoil.hex'''’.

|-
| style="border:1pt solid #000000;padding:0.176cm;"| Click on File >> Click on Save >> Go to Desktop/LDmicro folder >> Rename it as ‘normalcoil.ld’ >> Click on Save
| style="border:1pt solid #000000;padding:0.176cm;"| Then save the ladder diagram as ‘'''normalcoil.ld'''’.

|-
| style="border:1pt solid #000000;padding:0.176cm;"|
| style="border:1pt solid #000000;padding:0.176cm;"| Now we will see the working of this logic on hardware.

|-
| style="border:1pt solid #000000;padding:0.176cm;"| Connect Mainboard to PC using USBasp

laptop-usbasp.jpg

| style="border:1pt solid #000000;padding:0.176cm;"| Connect the '''Mainboard''' to your laptop using '''USBasp'''.

Turn on the power supply.

|-
| style="border:1pt solid #000000;padding:0.176cm;"| Open terminal >> Type cd Desktop/LDmicro >> Press ENTER >> Type '''avrdude -c usbasp -p m16 -U flash:w:normalcoil.hex '''>> Press ENTER
| style="border:1pt solid #000000;padding:0.176cm;"| Open the Terminal by pressing '''CTRL+ALT+T''' keys simultaneously.

Go to the folder where you saved the hex file.

Type the command as shown to upload this hex file to the '''Mainboard'''.

|-
| style="border:1pt solid #000000;padding:0.176cm;"|

Remove the '''USBasp''' connection from the laptop.
| style="border:1pt solid #000000;padding:0.176cm;"| Turn off the power supply.

Remove the '''USBasp''' connection from the laptop.

This will prevent any hardware damage.

|-
| style="border:1pt solid #000000;padding:0.176cm;"| normalcoil.png
| style="border:1pt solid #000000;padding:0.176cm;"| Let us see the connection details now.

|-
| style="border:1pt solid #000000;padding:0.176cm;"| normalcoil.png

| style="border:1pt solid #000000;padding:0.176cm;"| Connect '''GND pin''' of the red LED of '''Traffic Light module''' to '''GND''' pin of the '''Mainboard'''.

Then connect the +5V pin of the red LED to '''PA0 pin''' of the '''Mainboard'''.

Make the connections as shown in the picture.

|-
| style="border:1pt solid #000000;padding:0.176cm;"|
| style="border:1pt solid #000000;padding:0.176cm;"| Now turn on the power supply.

|-
| style="border:1pt solid #000000;padding:0.176cm;"| video-normalcoil.mp4
| style="border:1pt solid #000000;padding:0.176cm;"| We can observe that the red LED is glowing.

|-
| style="border:1pt solid #000000;padding:0.176cm;"| video-normalcoil.mp4

| style="border:1pt solid #000000;padding:0.176cm;"| That is the I/O pin PA0 gives the output of the coil which is logic 1.

|-
| style="border:1pt solid #000000;padding:0.176cm;"|
| style="border:1pt solid #000000;padding:0.176cm;"| Thus we learnt working of a '''Normal''' '''Coil''' using an LED.

|-
| style="border:1pt solid #000000;padding:0.176cm;"|
| style="border:1pt solid #000000;padding:0.176cm;"| Turn off the power supply.

|-
| style="border:1pt solid #000000;padding:0.176cm;"|
| style="border:1pt solid #000000;padding:0.176cm;"| This brings us to the end of this tutorial.

Let us summarize.
|-
| style="border:1pt solid #000000;padding:0.176cm;"| Slide 5: Summary

* Normal Coil

| style="border:1pt solid #000000;padding:0.176cm;"| In this tutorial, we learnt about the working of

* Normal Coil

|-
| style="border:1pt solid #000000;padding:0.176cm;"| Slide 6: Evaluation

Suppose that the input to Normal Coil is logic 0

What will be the state/output of the Normal Coil?
| style="border:1pt solid #000000;padding:0.176cm;"| Here is a self assessment question for you:

Suppose that the input to Normal Coil is logic 0.

What will be the state of the Normal Coil ?

|-
| style="border:1pt solid #000000;padding:0.176cm;"| Slide 7: Answer

The state of the Normal Coil will be 0
| style="border:1pt solid #000000;padding:0.176cm;"| The answer is the state of the Normal Coil will be 0.

|-
| style="border:1pt solid #000000;padding:0.176cm;"| Slide 8:

About Spoken Tutorial project
| style="border:1pt solid #000000;padding:0.176cm;"| The video at the following link summarises the Spoken Tutorial project.

Please download and watch it.

|-
| style="border:1pt solid #000000;padding:0.176cm;"| Slide 9:

Spoken Tutorial workshops
| style="border:1pt solid #000000;padding:0.176cm;"| The''' Spoken Tutorial Project''' team:

* conducts workshops using spoken tutorials and
* gives certificates on passing online tests.

For more details, please write to us

|-
| style="border:1pt solid #000000;padding:0.176cm;"| Slide 10:

Forum for specific questions:
| style="border:1pt solid #000000;padding:0.176cm;"|
* Please post your timed queries in this forum.

|-
| style="border:1pt solid #000000;padding:0.176cm;"| Slide 11:

Forum for specific questions:
| style="border:1pt solid #000000;padding:0.176cm;"| Do you have any general / technical questions on OpenPLC?

Please visit the FOSSEE forum and post your question.

|-
| style="border:1pt solid #000000;padding:0.176cm;"| Slide 12:

Acknowledgement
| style="border:1pt solid #000000;padding:0.176cm;"| Spoken Tutorial Project is funded by MHRD, Government of India.

|-
| style="border:1pt solid #000000;padding:0.176cm;"| Slide 13:

Thank you slide
| style="border:1pt solid #000000;padding:0.176cm;"| 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.

|}