Basics 04: OpenPLC on Raspberry Pi with Modbus

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On Basics 04 you will learn how to program a Raspberry Pi using OpenPLC Editor. We will also explore how to remote control the Pi's GPIO pins over Modbus TCP.
Starting the runtime 01:20
Start-stop circuit 02:40
Wiring 04:23
Create a new project 07:00
Upload to Raspberry Pi 12:11
Testing 14:07
Remote control over Modbus 15:05
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Опубликовано:

26 окт 2022

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Комментарии : 42

@kennyking6325 Год назад

Friends, Years ago, I was gifted an Arduino starter kit, but I never started program at it because I’m scared of scripting. This is bringing those barriers down! Thank you

@hugosilva5253 Год назад

Esse tipo de conteúdo no formato vídeo aula facilita demais a difusão do conhecimento. Ficou excelente!!! Parabéns 👏👏👏

@kennyking6325 Год назад

With plc5 addressing location 126:5 would be node 1, chassis 2, slot 6, terminal 5 . Those units were gigantic! Thank you

@daveschwarz5279 11 месяцев назад

Interesting project save’s a load of money in learning ladder logic

@carlosmarciosfreitas Год назад

Fantastic project!!!!!!!!

@CharlieBooker-gr7bj Год назад

Very powerful programming tool. Absolutely love it. Only complaint is the industrial style processors I use which are compatible are a bit pricey. Which of course OpenPLC has zero control of. But OpenPLC is freaking awesome by itself!

@guymartialdivakou3861 Год назад

Very great job...

@farmsidney Год назад

Eu adorei. Já sou entusiasta do ScadaBR faz anos. Com ele conheci o projeto OpenPLC do prof. Tiago, que passa a ser referência entre nós. Grato de mais.

@gurkancekic9057 Год назад

Hello i installed on Fedora. and it is working thank you.

@thanhlephuong7687 Год назад

Many thanks!

@gurkancekic9057 Год назад

i installed on Debian11. now no problem. maybe needed some trick for Fedora.thank you for this project.

@openplc Год назад

Should work just fine on Fedora too.

@geertvancompernolle2586 Год назад

Fantastic explanation about cooperation between RPi and OpenPLC, great job! Question about your remark where you initially changed the outputs to %QX99.0 (video: 16:33) for the ModBus approach to be out of the known RPi range and then reverted it back to %QX0.1 for, what you said, "ease of work later on". Should you have kept %QX99.0, would that have meant you had to change the Address field in the Radzio simulator to 99 instead of 0 (video: 19:20)? Would that have been the only change?

@openplc Год назад

If I had used %QX99.0 then the modbus coil address would be 99*8+0 = 792. Remember that the modbus coil addressing is sequential (1,2,3,4,5,6,7,8,9,10...) while PLC discrete addressing goes in bytes (...0.6, 0.7, 1.0, 1.1 ...). That's why you need to use that little formula to convert between addresses, and that's why I went back to %QX0.1 because it is much simpler to calculate: 0*8+1 = 1.

@ahmedechoo22 Год назад

Thank you ! for very nice video.Can i using this program for programming GMTCNT ?

@openplc Год назад

As far as I understand that is a proprietary platform. OpenPLC can only program open source hardware

@carol-lo 9 месяцев назад

Thanks for great tutorial. Would OpenPLC runtime be able to be operated in Raspberry Pi Pico? Hope it could and there will be tutorials soon.

@openplc 5 месяцев назад

Yes, there is a micro runtime for the Pico

@rylotrvl8382 9 месяцев назад

Would it be possible to use OpenPLC and a raspberry pi to act as just a read / write register and how would you go about doing that. Also would OpenPLC and the Pi show up as a PLC and RTU to software like claroty or is it just going to see a windows machine and Linux.

@openplc 5 месяцев назад

By default OpenPLC runs a Modbus server service, so yes, it can work as a simple Modbus device on the network. Clarity and other OT scan tools will identify it as whatever machine you installed OpenPLC on (Linux box, raspberry Pi, etc)

@ashif7542 Год назад

I have made a project which is used for testing hydraulic power pack by control of solenoid valve. There in the project i have used arduino mega and depending on the hydraulic machine i have to change the program for that i have used openplc software but the problem is i have to carry my laptop all the time. So I have an idea that I will use Raspberry Pi in which I will install windows and after that I will download and install OpenPLC software and program Arduino with OpenPLC inside Raspberry Pi. so want to know is it possible or not.

@openplc Год назад

OpenPLC Runtime works on Arduino boards independently. It does not require another host machine. You can unplug your PC and leave the runtime running on the board just fine.

@ronalerquinigoagurto555 22 дня назад

is the runtime hard real time?

@serviceteam8408 Год назад

Hello , great tutotrial , we would like to use this platform for school teaching, and we are evaluating the platform .! donations will also follow .. so that the project will grow more and more .! we would have a question : but once you load the project in the controller , you must always have the software open and in Run , or you can use it in Standalone ..! (without connections to the PC , with any Controller either ex. Arduino ? RPi 2/3/4 ...) thanks for the answers greetings from Central Europe

@openplc Год назад

OpenPLC Runtime is completely standalone on both the Raspbery Pi and the Arduino boards. However, you can also link two boards together making one master and the other slave. In that scenario the slave board is dependent on the master to run.

@RobertCravenIV Год назад

does 64bit raspbian or 32bit raspbian matter? Minimal OS install or doesn't matter for PLC performance?

@RobertCravenIV Год назад

(for a Raspberry Pi 4)

@momzeemix9033 Год назад

hi open plc hownto availp your tshirt?

@ruslan.zhumabai 11 месяцев назад

Openplc is cool, but acting a modbus protocol via the website is not standard. Is it possible that situation do via a separate block inside the program?

@openplc 5 месяцев назад

Not yet. This will be implemented in the future

@yunesrahem2715 10 месяцев назад

If i add more GPIO thorough a multiplexer can i program it on openplc ?

@openplc 5 месяцев назад

Yes, but you would have to write support for that on PSM

@Llop66 4 месяца назад

At the end of the video, it's a shame you didn't show the LED ON and OFF remotely controlled through MODBUS with RADZIO. Good video anyway !

@qk-techsmartautomationsolu3552 10 месяцев назад

Is it possible to add softmotion into this openplc software? Has anyone done it and can you give me some information?

@openplc 5 месяцев назад

Yes, but it is not simple. Take a look at this post: openplc.discussion.community/post/ethercat-servo-drive-control-using-openplc-and-raspberry-pi-12769229?trail=15

@miladinseratlic5984 Год назад

Analogs IO available ?!

@openplc Год назад

OpenPLC supports analog IOs, you just need to pick a platform that has them. Unfortunately Raspberry Pi has no analog GPIO pin, so you will have to use a slave device or switch to another platform.

@aldob5681 Год назад

"there is a little problem". for such a simple example? is not going to be an easy journey. as a traditional programmer this ladder paradigm is un-natural.