What is ControlNet?
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realpars.com/controlnet/
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Need a solution to talk on your industrial network? Let’s look at ControlNet.
ControlNet is an open industrial network protocol and is managed by formerly “Open DeviceNet Vendors Association” or ODVA.
ControlNet is based on a token-passing bus control network and we will talk more about how this part works as we move along.
ControlNet utilizes the Common Industrial Protocol (CIP) for the upper layers of the Open Systems Interconnection (OSI) model that has seven layers:
physical, data link, network, transport, session, presentation, and application.
The designers of ControlNet adapted the CIP layers of transport, network, data link and physical to fit the needs of the ControlNet network.
ControlNet was designed to provide reliable, high-speed control and I/O data transfer by using programming that sets the logic to specific timing over the network.
It also provides for critical messaging that does not rely on timing to be executed without interfering with the transport of control and I/O data.
The types of devices that the ControlNet network talks to are Programmable Logic Controllers, I/O chassis, HMIs, personal computers, drives, and robots.
It is typically used for redundant applications and/or applications that work best with scheduled communications.
ControlNet has a data transfer rate of 5 Mbps and is in the mid-range of the three popular networks with EtherNet/IP ranging from 10 Mbps to 1 Gbps and DeviceNet ranging from 125 to 500 Kbps.
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Пікірлер: 39
Thank you for the very helpful videos making every time
@realpars
5 жыл бұрын
You are very welcome! Thanks for your positive feedback.
Excellent presentation
Big thumbs up before even see the intro of the video
@realpars
3 жыл бұрын
Thanks a lot!
Good job 🙏 make more videos for instrumentation engineering
Nicely explained... Thank you..
@realpars
5 жыл бұрын
You are very welcome! Happy learning :)
Great video!!!
What is a good starting video to learn about the basics when it comes to this stuff? Im currently an electrician with goals of learning more automation, but have trouble soaking these videos in. Thanks for all your great videos!
@realpars
3 жыл бұрын
Hi Tommy, Thanks for your comment! Great to hear your motivation in regard to learning PLC Programming. If you want to start from the basics, I would recommend starting with the first course in our library and make your way up from there. Our course library is specifically designed in a way where it provides all the tools needed for beginners to evolve into an advanced level through our hands-on courses. Besides, you will have access to our Technical Team - consisting of high ranking engineers with a lifetime of experience - who are here to help you out with any questions you might have along the way! Feel free to browse through our course library to see all the different topics we are covering. bit.ly/30AVJaR Just to let you know, that we also have a free course on PLC Hardware bit.ly/2XnnUrF If you are interested, you will obtain full access to our complete course library (400+ video courses) by subscribing to either our monthly package for €22.12 a month or our yearly package for €159.28,-. I hope this helps- please let me know if you have any other questions, and I'll do my best to assist. Happy learning!
so much helpful.
@realpars
5 жыл бұрын
Great to hear! Happy learning.
Gran video, me servio mucho, saludos desde Perú.
@realpars
Жыл бұрын
Gracias, Jhon!
Thanks🔧
@realpars
5 жыл бұрын
You are welcome!
Great! Thank you.
@realpars
2 жыл бұрын
You are very welcome!
Thank U
@realpars
4 жыл бұрын
You are very welcome!
Thank you for this video. Just what I needed
@realpars
4 жыл бұрын
Happy to hear that, Jose! You're very welcome!
@youssefdb7164
7 ай бұрын
do you have presentation form ppt ?
Down to it. I don't completely understand what these devices do, but it has caught my attention. I'm trying to design a computer controlled (server) system with 60 switches, two would be in different configurations at a time, at a distance equal or greater than 1,000 meters. Does the devices you have had on KZread do that or is it capable of doing it? Accuracy, efficiency and cost are factors. Right now, I just need yes or no. Thanks.
@realpars
3 жыл бұрын
Assuming you are referring to repeaters, each protocol type (Ethernet, ControlNet, ProfiBus, etc.) has rules concerning the maximum number of repeaters that can be used. For transmission of 1000 meters, I would definitely recommend using repeaters with a fiber optic link between two repeater stations.
@theodoreroberts3407
3 жыл бұрын
@@realpars Wow! Fantastic! Besides, why create something new if it already exist?! Thanks. Oh! Do you have any company contacts, you would be willing to share?
If I have the option to build a Ethernet Industrial network for the plc communication and connecting the nodes, for what good reason why would I ever entertain considering a Control Net Network especially in today’s world. I understand Control Net preceded Ethernet. I’m curios though because while I work for an OEM as a Field Tech and we design, build and deploy huge engineering plant systems with automation I’ve occasionally seen a Control Net design system in the field on a new project I was there for commissioning only few years ago. I thought curiosity and wondered why that project was Control Net when it could of easily been Ethernet. I also couldn’t see why it wasn’t even Ethernet. On the follow up similar project we built as an almost duplicate plant for the same company in same state this system Control was now Ethernet. So, I’m wondering why the Control Net site project was built as Control Net or even what could of been the reason.
@realpars
5 жыл бұрын
There is only 1 reason I can think of. ControlNet is deterministic. Ethernet/IP is not. HOWEVER, with modern switches and network management, EtherNet/IP is as close to deterministic as you need to be for most applications. In 8 years of using Ethernet/IP and billions of data transactions, I cannot point to one device or program fault that has been caused by a missed command or status bit.
@ardentdfender4116
3 жыл бұрын
@@realpars I'm somehow rewatching this again 2+ years later and with more knowledge and experience in between. In so I actually learn more from the video this time around. One question though is what actually makes ControlNet "deterministic"? Is it the actual "Token" that is produced and passed around when it is doing so?
I am new working in a factory metso recycling papers and I am engineer in automation and I have a question about the programming of Metso machine . what is the difference between language Function blocks CAD (Metso Automation) And Function blocks Diagram ?!
@realpars
5 жыл бұрын
Hello, Generally, the concept of making and using an FB and how it can help us to simplify and make our software more legible is software environment-independent. It means Function Block Programming is developed under a specific standard (IEC 61131-3) and every company has to follow this particular standard to develop their own software. If you had previous experience with Siemens software and programming, FbCAD really resembles the Siemens PCS7 programming environment. Let us know if you had further questions. Thanks
Should I use controlnet or Ethernet/IP ?
@realpars
5 жыл бұрын
ControlNet is deterministic. Ethernet/IP is not. HOWEVER, with modern switches and network management, EtherNet/IP is as close to deterministic as you need to be for most applications. In 8 years of using Ethernet/IP and billions of data transactions, I cannot point to one device or program fault that has been caused by a missed command or status bit. That said, I suggest using Ethernet/IP. The PLC and device interfaces are easy to configure, require only standard CAT5E cabling and network switches, and are inexpensive to manage and maintain.
@user-hj4pi3xu2p
5 жыл бұрын
RealPars thanks for the information.. you guys are amazing. Keep it up!
can you put video for OPC
@realpars
4 жыл бұрын
Hi Shankar! Thanks for your comment and your suggestion. I will pass this on to our course developers! Thanks for sharing and happy learning!
make video of ethercat bro
@realpars
5 жыл бұрын
Hi Arun, Thanks for the topic suggestion, I will pass it on to our creator team. Happy learning!