Dear All! At first thanks the possibility to connect to the community. Maybe my topic is not really the latest technology but I have to solve somehow. I would like send bits and words from 750-841 to Node-red which is running on raspberry (and reverse) . The sending is managed (using network vari…

Hello, do you have the possibility to do frame capture in the rPI ? If so can you check if you have the right NVL number ? Also in your project do you have 1 list for receiving and another list for sending ? What IP address you have put in the NVL network parameters ?

Hi! I tried to upload some screenshots but the system does not let it. On codesys side I have to table one is for sending List indetifier 1 and a receiving list indetifier 3. I am using port 1202 If I modify any of the variables in codesys sender NVL it changes in node-red. After I make some modi…

what about the ip addresses ? Are you using 255.255.255.255 ? or abc.def.ghi.255 ? or abc.def.ghi.jkl ? or multicast ip ?

[Bemutató1] These are the setting that I am using int he project

Make sure the NVL port is exposed and there is no firewall blocking it.

What does it mean to expose NVL port. I try to make communication between PLC and Raspberry. They are on the same network. I also try to make communication my PC (installed node red) and PLC. I created the necessary exception to UDP communication (Incoming and outgoing rules) but I got the same resu…

Are you running Node-RED in a Docker-environment on the Raspberry? If so, you need to allow the UDP-ports set up in the NVL in CS2.3. [nr] Also, I find the module “node-red-contrib-nvl” better and more up to date than the “node-red-contrib-netvar” which is used in WagoKurt’s tutorial.

if you need to open other container port after having setting everything up, here is a how to for this: [image] Docker edit container parameter after Hardware and Linux Have you ever created a container avec after some testing found out you forgot to do some port forwardin…

No. I am not using docker. Should I?

I find it easier to manage, but you don’t have to… Have you tried the library I mentioned? You can copy/paste the content of the NVL file directly into the node, enter the list id and connect it to the UDP listener.

Codesys 2.3 Node-red Communication

Node-RED

WagoIcard May 13, 2024, 11:53pm 12

if you need to open other container port after having setting everything up, here is a how to for this:

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Codesys 2.3 Node-red Communication

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