Read Write Data on Siemens PLC using Node-RED (S7)

[@ritasallai152]

I am new to node red and plc, thank you this helped me a lot!

[@ChunzPS]

@@ritasallai152 Happy to hear that it's helpful.

[@Carlo-h5e]

good morning I can't communicate put get and it's been enabled I'm using a PLC I'm not in simulation but even when the video reaches minute 5:59 so I can't make the window appear it could give me a payment and I'll try for a week

[@ChunzPS]

If you use the physical PLC, you don’t have to use NetToPLC Program. Please specify the IP address of PLC in Node RED and that should work fine.

[@Carlo-h5e]

@@ChunzPS thank you

[@matematicavel129]

Hello! My question is regarding connection status monitoring, if my plc is offline, I would like to know if it is possible for any node to indicate this error, the catch node does not show when the s7 nodes are offline

[@joe-wi6hn]

Is it possible to write multiple variables to a datablock at once?

[@ahrarbhatti]

I am trying to follow the same instructions but it is showing me this error. "Error connecting to PLC: Error - TCP connected, ISO didn't" can you please provide some help ?

[@Engineer_Youtuberr]

do i need physical plc to check this example?

[@ChunzPS]

In this video, I used PLCSim on TIA without having the physical PLC.

[@genrotik]

Hi, what is the role of the program NetToPlc ?

[@maximebuy]

He is using plcsim instead of a real plc. plcsim can't communicate with real network. With NetToPlc you can really read / write plcsim via real network.

[@Yazzol]

​@@maximebuy and nettoplc opened automatically once he wrote the plc ip on nodered?

[@agungbuana6796]

does this work with s7-300?

[@ChunzPS]

sure

[@ghozifarizi8708]

im using plc 1214 but it went "bad failure" how?

[@alessandroromanini5779]

hi, I have a problem in making node-red communicate with a s7 1500 plc while with the 300 series everything is ok. I created some non-optimized db and set as parameters: rack 0 slot 1 as port 102. could you help me thanks a lot.

[@ChunzPS]

Did you permit put/get access?

[@alessandroromanini5779]

@@ChunzPS no

[@ChunzPS]

@@alessandroromanini5779 Please try turning it on and check communication again.

[@DreamDeal]

Hey, Do you need the IOT to be on the same network? I have mine connected to the router on DHCP and the S7 doesn´t goes online...

[@ChunzPS]

Yes, it needs to be on the same local network. In addition, you should set all devices to static ip.

[@pravinshinde640]

I don't know the Port & Rack no. How do I connect? I'm working on S7 300 PLC with simatic manager.

[@ChunzPS]

Basically, port should be 102 and rack no. is normally 0. Slot is 2.

[@pravinshinde640]

@@ChunzPS thank u so much. Video is really so helpful.... The Port 50523 worked for me. From siemens support page no. 24534065. It will be helpful if you added this to Video description.

[@phongphanhung4802]

you can give me file module node-red with funtions with plc s7. pls!

[@ivanlopeztorres5567]

Should I connect the raspy to the PLC using ethernet or profinet cable?

[@ChunzPS]

You can use either.

[@olausit]

@@ChunzPS Thank you very much. To connect it to a real PLC, not to a simulation, do you need netoplcsim program?

[@ChunzPS]

@@olausit In case of that, you don't need to use nettoplc.

[@olausit]

@@ChunzPS In this moment i am trying to put nodered into a raspberry py 3 b+, and in my pc i have tia portal v15.1. I followed all steps of you both tutorials but i have this recurrent error "Error connecting to PLC: Error: connect ECONNREFUSED 127.0.0.1:102". I have both conected to a router wifi, and this router has internet. I used nettoplcsim as administrator but the failure continues. Any idea? is it a problem of tia portal varsion maybe? Actualization: i have tried to make a network only with a switch, 2 ethernert cables (1 for the pc and the other 1 for the rpi) and i get the same problem

[@ctlee681231]

Sorry to bother you, is there a tutorial for Mitsubishi FX5U?

[@GijoeXD]

Is there a known way to do this with only a raspberry pi? The dad of my girlfriend has a huge System based on s7 and London go connected over modbus but the System has proven to be too stiff and complex to add any functions anymore. They gone to the point where only her dad has some kind of basic idea how his system works.... I try to convince him that he needs some kind of "propper" smart home system and it would be great if we could continue usingthe thouseds of € in siemens equipment.... We dont want to run multiple computers to do this. Just wanted to explain why I'm asking the question.

[@ajairaj9624]

best solution is IOT2020 gateway. cost only 200$. it has linux in it, so you can install and run. Rugged for industrial application. Raspberry cant be used for an industrial purpose. not cretified and they are not designed to run for 24 hrs.hope this helps.

[@nhatnguyenduy7260]

Sorry, but do we need a PLC IOT2040 to install Node-red-s7?

[@ChunzPS]

Actually, you can use PLC IOT2040 to install Node-red. But, other embedded boards such as Raspberry Pi 3, Beagle Bone or even PC to install Node-red. To find more information, go to nodered.org

[@MuhammadHassan-hc9bo]

Can I do this with plcsim advanced?

[@ChunzPS]

absolutely

[@ruebenshrestha1762]

Port 102 is the default for s7 protocol?

[@ChunzPS]

That's right.

[@mohammadumar443]

in your demonstration we don't need physical PLC right ?

[@ChunzPS]

That's right.

[@mohammadumar443]

@@ChunzPS after installing s7 pckgs in node-red s7 endpoints are not showing in node-red. any clue what could be the reason. i am installing it on windows.

[@mohammadumar443]

@@ChunzPS and what version of Netplcsim you are using. I am not able to ping my plc using netplcsim and tiav13? please help

[@ShubhamGupta-c2n]

Hello ChunzPS! Thank you so much! This helped me a lot! I'm facing one problem: that is i cannot able to modify value in tia portal. that means when i try to force value in TIA portal, it says: "Address cannot be forced".

[@RonnsLee]

Thank you so much! This helped me a lot! :)

[@amirulaimanbinmohdrozani4536]

How to get network ip adress?

[@dineshpatle5277]

can you Schneider Tm200 plc communication raspberry Pi with node red

[@ChunzPS]

I have never used Tm200 before so I'm not sure whether it is possible or not.

[@alwayshappy9509]

Thanks for your tutorial, I am facing some problem, "s7 in" nodes shows online but I got msg, "No response from PLC, restarting communication". I don`t understand, as I have two "s7 in" nodes but getting online one message after some instants.

[@ChunzPS]

Do you use PLCSim or the real PLC?

[@alwayshappy9509]

@@ChunzPS Actually, I have real PLC. So I don`t need to use PLCSim?

[@alwayshappy9509]

I am using real PLC, and in S7 node I am using 192.168.0.1 as an IP address. But still, the message is coming.

[@ChunzPS]

@@alwayshappy9509 Did you check "Permit access with PUTGET Communication ~" option at 0:39 ?

[@alwayshappy9509]

@@ChunzPS yes. I already checked in this option.

[@cristianandreshenaovargas4709]

como creo el nodo s7 ?

[@ChunzPS]

You should go to manage pallete and search for s7. Then, install it.

[@cristianandreshenaovargas4709]

Muchas gracias otra pregunta para leer datos Reales o Int que control me sirve que envio un 10.0 y me sale 1198239482

[@ChunzPS]

Please check the data type. The data type between TIA and node-red should be similar.

[@MrAshwindersingh]

hey can u make video on modbus node red and plc sim

[@johanneseichermuller7438]

Very nice, does this work with a Simatic 400?

[@mateocastrillon376]

Hey there nice video, í have a questionquestion u dont have to make a send block like tsend ? Im wondering how the plc knows it has to send the data registres tru the Ethernet port

[@ChunzPS]

For this method, there is no need to use tsend. The communication between the two uses S7 protocol.

[@mateocastrillon376]

I did exactly as you did in the video but I'm using a physical PLC and it shows the error "No response from PLC, restarting communication" but the S7 in and out node are online

[@ChunzPS]

@@mateocastrillon376 Have you already check allow put-get communication and unchecked optimize access?

[@josuemiguelfloresalvarez7419]

Muy bien el video, tengo el tia portal v15 y el plc sim podria funcionar? o necesito el plc sim advance

[@danujaboteju9736]

Hello ChunzPS Thanks for uploading these node red videos I have a small issue - I am using siemens V13 PLCSIM. I could get the msg.payload correctly when i use the s7comm node. But when I use s7 in node I get the msg.payload "No response from PLC, restarting communication". Any suggestions please? And without s7 and s7 comm nodes, I tried to use Modbus read node from node-red-contrib-modbus library. Could not get any output. (not even an error msg) Could you please give me a suggestion? Thanks in advance.

[@ChunzPS]

I think S7 protocol does not use Modbus to communicate with other components. So, using Modbus module could not access to plc.

[@MrAshwindersingh]

same problem i tried modbus i dont understand why it is not working . let me know if u find solution thanks

[@afq677]

i do exactly like the video was did but still connection unreached host. Why is is happen 😅

[@ChunzPS]

Do you connect Node-red with PLC Sim or an actual PLC? If you use PLC Sim, you need to have nettoplcsim and configure your network address and plc sim address.

[@afq677]

how do i send any data to plc?

[@ChunzPS]

You should select S7 output and configure it as the video shows. After deploying, it will automatically send data according to the cycle time.

[@nota3446]

Which application is that?

[@ChunzPS]

Node-red

[@usmanemder7507]

Thanks for your fruitful tutorial. I wanna using raspberry Pi with node-Red. What will you think, will it work?

[@ChunzPS]

Sure. It will work.

[@usmanemder7507]

@@ChunzPS But then, what will be the physical connections.

[@ChunzPS]

By LAN or wireless LAN

[@usmanemder7507]

@@ChunzPS Wifi

[@ChunzPS]

@@usmanemder7507 First, you should connect S7 PLC with wifi router and configure it to the same network as Rpi is connected. Moreover, you don't have to use Nettoplcsim because you use the physical hardware.

[@eastern815]

Thank you🙏

[@cristovaonunes4952]

Many thanks

[@夏锋沉]

After checking all the videos I found people in this industry can't talk

[@younesamakran2279]

😂😂😂😂😂😂

[@PladdenTim]

First of all thank you :) I have a problem. If i start node red by typing in the IP-address in the browser, it works. But if i do the same by using the Internet of things Platform of IBM, there is alwayse the same error! "Error connectiong to PLC: Error connect Econnrefused 127.0.0.1" Do you or anyone here have an idea why it don't work and how to fix the problem?

[@ChunzPS]

So, in that case, you have to find your public IP address of your plc and then insert that in your Node-red server.