PLC programming using TwinCAT 3 - Function blocks & interfaces (Part 6b/18)

In this part we will continue our journey of the object oriented features of IEC 61131-3 and look into something called interfaces. Interfaces provide a layer of abstraction so that you can write code that is ignorant of unnecessary details. Interfaces aid you in designing more modular and robust software. With interfaces it’s possible to decouple direct dependencies between objects in your software.

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Intro 0:00
Interfaces 0:58
Why interfaces? 6:24
Example program 10:17
Dependency injection 18:49

#TwinCAT3 #TwinCAT #PLC #Beckhoff

[michellekniffen]

Stumbled upon this series while preparing for an interview, and can't thank you enough for creating these. Phenomenal job explaining concepts in a way that never clicked before!

[MBAutomation]

I'm in first week of job that company only uses TwinCat. Your videos are really helpful. keep up the good work.

[Bartong]

Jakob thank you for all of your hard work making this series! As someone coming from PLCs programmed in ladder I don't think I would be able to get a hold of this without your series.

[janferkl]

What a nice way how to spend time during covid infection... Thank you. Much better than Netflix!

[DonnyJ_CountryLife]

Jakob, you have singlehandedly taught me how to program in TwinCAT 3. For this I am extremely grateful. However, I can't seem to wrap my head around Interfaces. When I watch C++ videos I understand the concept vaguely, but I can't seem to fully grasp it in TwinCAT. Maybe in the future you could make a detailed video detailing further how to use them?

[stefanhenneken]

Jakob, a great tutorial about the using of Interfaces related to dependency injection. I'm sure this video will help many developers to understand how to use interfaces in TwinCAT. 👍

[isaacdanielgarciabalderram]

Thank you for your dedication for making this video series, the knowledge is the most value thing that humanity can share and this makes you a very generous person. Sorry for my English, Regards from Mexico :)

[zigajavornik]

Beckhoff has a good example code for OOP, but this part of the series is great and describes these similarities in great depth. I wish you made these videos before I started working with Beckhoff, but I can still get some great info from your videos which have great information. Cheers

[Josempe]

I won't get tired of thanking you for these videos Jacob

[sanoopgr]

@Jakob Sagatowski Thanks for making PLC code simple and interesting! Following you in various forums, you are an icon in the new age PLC developers :) Keep Rocking!

[jinhe]

Great video! Beckhoff PLC is way ahead of other PLC brand.

[viktorgaponenko]

Hi Jakob! Thanks for your hard work! You give us the necessary knowledge and motivation to move forward!

[alexanderwagner]

Hi Jakob, thanks a lot for your tutorial and also your blog alltwincat. I am coming from the embedded C world with almost 10 years experience on uC programming. Starting with TwinCAT and Beckhoff gave me some doubts and headache at the beginning, but since you explain it very clearly its meanwhile easier for me to see it more clearly and it might even become fun i guess. Thanks and keep up the good work!

[PattysLab]

Your Twincat series is so interesting to watch taken that your videos are quite lengthy great job!!

[emiliocastillo]

Such a good explanation, I cant wait for the rest of the Course!!

[Jeterify]

Thank you for these videos, they are really helpful and pedagogical!

[rezaheidari]

It was a great video and I enjoyed. Thanks for sharing your knowledge. I am waiting for the next video Jakob.

[erkanozvatan]

Excellent video series! Thank you very much!

[faridshahni]

Great work Jakob, looking forward to the next videos.

[MarkLazarides]

Another great addition - thanks @Jakob