I am using this clip to pre educate executives before we sit down to dive into their business and have a greater discussion on strategy...thank you Walker for providing these tools

Great job Walker!!

I'm doing a masters in industry 4.0 and your videos are pure gold. Thanks for share your knowledge!

What about pulling historical data? Do I pull it from the source or does the Unified Namespace keep history and if so where? How does buffering work, when say my MES layer was down and need to get the downtime states of the past 3 (say) hours for OEE? Looking forward to listen to you at the MESA Africa conference from South Africa next month!

Very clear and to the point. The best UNS video so far.

Killer video! 2k views already! 🔥 definitely worth watching several times.

Great Video, thanks for sharing this knowledge. OPC UA also provides pub-sub way for data communication. Deadband filters can easily be applied there. But sounds like MQTT got a lot more to offer than just data aggregation in UNS. Will love to know more about it

Thank you for the clarity.

Hey Walker, Great video. So you are using MQTT to bring all the information into your UNS and you are then structuring your data following the ISA 95 Part 2. Let's say you were using MQTT Distributor as your broker - could be any broker I know - then when you are publishing e.g. data from the ERP system. Then you would need to subscribe to that data, merge it into the data structure following ISA 95 Part 2 and then publish that whole structure again right? Since with MQTT Sparkplug B you only have Group ID, Edge Node ID and Device ID, you can't directly translate that to ISA 95 Part 2, which is why you would need to do that intermediate step in order to structure all data within the UNS. Is this correct or am I missing something?

I'm following walker for almost 3.5 years. The unified namespace concepts and architecture are well suited for automotive industry and to some extent in pharma. When it comes to pharma or process industry most digitalization activities is depend on batch records. I believe the UNS architecture can solve problems to some extent. Can you provide more insights on how the dataops can be handled in a better way at pharma. I think there are some scenarios in process industries where we have to choose the right thing whether it should be UNS based or digital thread based. I would love to hear some detailed info from walker on this topic in white board series.

Great video! However the dismissal of OPC UA is not accurate or helpful as it ignores OPC UA Pubsub and the strong support that it has in industry. Does anyone know where to find an unbiased technical comparison of OPC Pubsub vs SparkplugB?

Enlightening that 93% of industrial data changes at one minute intervals or longer. A poll/response OPCUA system is over sampling most of the time. In the case of fast changing signals, OPCUA is under sampling. It only makes sense that the future of industrial measurements is a publish/subscribe system such as MQTT where data is captured only when it changes. Thanks for the great explanation of the UNS!

Hi walker how uns hand shake will all stacks data from plc scada erp etc? What software could do that? I mean Direct each layer to uns. And what software could take data info from uns for report dashboard bi? Thanks in advance.

Funny, how Walker after all this time still looks at the camera with a face that has a bit of a questioning look - "Am I making sense here?"

This has got to be the best video on this junk.

Thanks

This could not be more clear

Next questions?

Your vídeos are Amazing...I Just have more one question, about historical data. How any application can read from UNS?

Does UNS and the cloud portion of the automation stack work for ITAR companies (from a security/regulatory point of view)?

@4.0 Solutions Your comment about OPC UA does that change with the newer OPC UA PubSub model? That seems to address many of your problems with OPC.

Walker knows this inside out 😅

I do see a challenge when we have guarantee that orders are created from erp to mes using only mqtt. How do you make sure no data is lost when you don’t know of the application is listening? Do you let these platforms speak spb? Because I’ve seen no erp speak spb. If they don’t speak spb, do you build a microservice to run api calls to fetch this data?

How do we implement security in UNS or what strategies we need to follow to secure the UNS enviornment?

Who would one seek to set up automation for a new manufacturing plant for a new business to opperate with industry 4.0 practices from the beginning?

I’m not sure I believe your stat 93% industrial data updated > 1/sec? (especially IO data) it Depends, what level of communications and what are you doing process control, discrete manufacturing or motion control. A big deal made is protocols like MQTT are COS (change of state only) to save bandwidth. Two issues arise 1) COS doesn’t accommodate a heartbeat (how do you know the wire wasn’t run-over by a tow motor, or the cell tower was struck by lightning?) ,2) when a process upset occurs, typically traffic increases exponentially so much that a network size for normal COS only with retries Quickly crashes. How do you deal with those situations?

MQTT over NATS.

I stopped watching after 11 minutes, can not give you more time to answer the question of you title. You still did not answer it, it is very frustrating to watch you beating around the bush so much. Is it a design concept? Is it software running somewhere? I have 25 yrs experience in IT specialized in data, software, design concepts (object oriented vs functional etc). Some years ago it was fashion for big companies to look into data brokerage middleware for communication between point solutions, those projects struggled to become succesfull, mostly because of the tough choices to make what you leave up to the point solution and what to the broker. Some benefits/points you mention are not exact, claiming that the UNS has the sst is not true. The truth lies in all connected systems, the UNS only holds ( with least latency as possible) a hot copy of a subset of all the information. I will look at other videos to find more information on what UNS really is.

Nice! Things are very changed since the 3.0 epoch of automation. These were the days that i use to work as automation engineer but now days all are changed. I can recall programs that i use to work with, lets say process control programs from Opto22 and scada software Genesis I dont know if it is still in the automation market in the time beeing. I think that the new Elon Musk robots will be connected to a unified name space and because the Tesla is a Data company as you right said in other videos the robots will use that unified name space to read and write data in order to produce products. Thanks to you I restart to, lets say "play" again with automation, particular with home automation using Raspberry Pi as Mqtt broker and ESP32 and Arduino as clients. I want your advise in that That is, I use to connect lets say a ESP32 microcontroller to an local MQTT broker installed in a local Raspberry Pi and that local MQTT broker connected in and MQTT broker in the web in order to have access to the ESP32 microcontroller from everywhere in the globe. I use a mobile with MQTT client installed, in order to control and view data The problem was that, if somehow the MQTT broker in the web collapes the I loose connection to the ESP32. And then a Idea emerge in my head!!! I will use an VPN program, I will install a VPN in my local Raspberry Pi in order every time I connect my mobile to the VPN my mobile will be part of the local network so i will not need any more the MQTT broker in the web to control the ESP32 microcontroller when I am away from home, I will use only the local MQTT broker. Ofcourse * I use DDNS, * I have opened a Port in my Router Which is your opinion about this approach? What is your advise in that? You keep doing nice job and videos around the industrial automation world Call me "Bill from Greece" if you ever mention my name in future videos!!!! If you ever come to Greece be my Guest!!!!