Nirmala Venkat: Created page with " {| border="1" |- || '''VISUAL CUE''' || '''NARRATION''' |- || Slide 1: || Welcome to the spoken tutorial on '''OpenPLC Heater module.''' |- || Slide 2: Learning Objectives..."

2021-07-14T11:47:03Z

Created page with " {| border="1" |- || '''VISUAL CUE''' || '''NARRATION''' |- || Slide 1: || Welcome to the spoken tutorial on '''OpenPLC Heater module.''' |- || Slide 2: Learning Objectives..."

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{| border="1"
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|| '''VISUAL CUE'''
|| '''NARRATION'''
|-
|| Slide 1:
|| Welcome to the spoken tutorial on '''OpenPLC Heater module.'''
|-
|| Slide 2: Learning Objectives* OpenPLC''' '''Heater''' '''module''' '''

|| In this tutorial, we will learn about '''OpenPLC Heater module.'''
|-
|| Slide 3: System Requirements
* Ubuntu Linux 18.04 operating system
* OpenPLC Heater module
* OpenPLC Mainboard
* 24V, 2A SMPS

|| To record this tutorial I am using:
* '''Ubuntu Linux 18.04''' operating system
* '''OpenPLC Heater module'''
* '''OpenPLC Mainboard'''
* '''24V, 2A SMPS'''
|-
|| Slide 4: Pre-requisites
*OpenPLC Mainboard
*If not, please refer to the relevant tutorials from [https://spoken-tutorial.org/ Home | spoken-tutorial.org]

||
* To follow this tutorial, you should know about '''OpenPLC Mainboard'''.
* If not, please refer to the relevant tutorials in this series on this website.
|-
|| heater-setup.png
|| This is the image of the '''heater module'''.

'''Heater module''' is used to perform a typical '''analog''' experiment.

That is, to control the temperature of a heating element.

You may imagine this setup as a cutting machine, used to cut heavy metals.
|-
|| Slide 5: How the Heater module works?
*First it will sense the temperature of the machine
* Then it will turn on if it is adequately cold.
* If it exceeds a certain threshold, the machine shuts down and starts the cooler.

|| First it will sense the temperature of the machine.

Then it will turn '''on''' if it is adequately cold.

If it exceeds a certain threshold, the machine shuts down and starts the cooler.
|-
|| Slide 6: Main Components
*Fan
*PCB
**Resistor(heating element)
**Thermistor
**Indicator LEDs
**Connectors

|| The main components of this '''module''' are
*Fan and
*'''PCB'''
*The '''PCB''' has
**Resistor i.e. heating element
**Thermistor
**Indicator LEDs
**Connectors
|-
|| heater-input-power.png

|| This '''module''' can be powered up with the '''power pins''', marked as '''‘Power Input’'''.
|-
|| heater-MCU-pins.png

Mark ‘fan’ and ‘heat’ as input

Mark ‘temp’ as output
|| We can find 3 '''MCU''' i.e. '''microcontroller pins''' on the '''PCB'''.

They are marked as '''‘fan’, ‘heat’''' and '''‘temp’'''.

'''‘fan’''' and '''‘heat’''' are the '''input pins''' for the '''heater module'''.

Whereas '''‘temp’''' is an '''output pin'''.
|-
|| heater-resistor.png
|| In this '''module''' we are using a '''resistor''' as the heating element.

While conducting current, it gets heated up due to '''power''' loss from it.

This '''resistor''' conducts only when the '''pin ‘heat’''' is given '''logic 1'''.

This will be indicated by the '''LED ‘HeatOn’ '''present to the right on the '''PCB'''.
|-
|| heater-MCU-pins.png

Highlight fan pin
|| Similarly, the fan will turn '''on''' when the '''pin ‘fan’''' is given '''logic 1'''.

This will be indicated by the '''LED ‘FanOn’ '''
|-
|| thermistor.jpg

Highlight thermistor
|| A temperature '''sensor''' is coupled with the '''resistor'''.

The temperature '''sensor''' used here is a '''NTC thermistor.'''

Thus, the '''resistance''' of the '''thermistor''' is inversely proportional to the temperature.
|-
||
|| This '''thermistor data''' will be given to the '''microcontroller''' on the '''Mainboard'''.

The program in the '''MCU''' will then control the '''logic''' level of '''‘fan’''' and '''‘heat’ pins'''.
|-
|| Slide 7: How can the Heater module be powered?

Heater module can be powered using the output power pins of Mainboard
|| How can the '''Heater module''' be '''power'''ed?

It can be '''power'''ed using the output '''power pins''' of '''Mainboard'''.
|-
|| SMPS-Mainboard.jpg >> Make the connections as shown in the picture.
|| Connect the''' SMPS''' to the '''Mainboard''' as shown here.
|-
||
|| Now, we’ll look at the working demo of the '''module'''.
|-
|| demo-fan.png
|| Make the connections as shown in the picture.

Remember to turn '''OFF''' the '''power''' while changing or making new connections.
|-
|| demo-fan.png

Make the connections as shown in the picture.
|| Connect the '''power pins''' of the '''module''' from the '''Mainboard''' using '''relimate connectors'''.

Connect '''+5V''' to the '''‘fan’ pin'''.
|-
|| video-fan.mp4
|| We can observe that the fan starts rotating and the '''‘FanOn’ LED''' starts glowing.
|-
|| demo-heat.png

Make the connections as shown in the picture.
|| Remove '''+5V''' connected to the '''‘fan’ MCU pin'''.

Connect it to the ''''heat' pin''' instead.
|-
|| video-heat.mp4
|| We can observe that the '''‘HEATon’ LED''' starts glowing.

It indicates that the '''resistor''' is turned '''on''' and the temperature is rising.
|-
||
|| If you have a '''multimeter''', use it to measure the '''resistance''' from time to time.
|-
||
|| This brings us to the end of the tutorial.

Let us summarize.
|-
|| Slide 8: Summary
* OpenPLC Heater module'''

|| In this tutorial, we learnt about '''OpenPLC Heater module'''.

|-
|| Slide 9:

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

Please download and watch it
|-
|| Slide 10:

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 11:

Forum for specific questions:
|| Please post your timed queries in this forum

|-
|| Slide 12:

Forum for specific questions:
|| Do you have any general / technical questions on OpenPLC?

Please visit the FOSSEE forum and post your question.
|-
|| Slide 13:

Acknowledgement
|| Spoken Tutorial Project is funded by MHRD, Government of India.
|-
|| Slide 14:

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.
|-
|}

OpenPLC-with-LDmicro/C3/OpenPLC-Heater-module/English - Revision history

Nirmala Venkat: Created page with " {| border="1" |- || '''VISUAL CUE''' || '''NARRATION''' |- || Slide 1: || Welcome to the spoken tutorial on '''OpenPLC Heater module.''' |- || Slide 2: Learning Objectives..."