Hi there, I’m fresh new to Wago, I need to develop a two-way communication between two PFC100 over ethernet. Which is the most convenient solution? Thanks in advance

Hi, youl’ll find a discussion around this topic here [image] Best solution for two-way communication CODESYS Sounds like a feasable solution, thanks! I will give it a try

Cristian, Codesys has NVLs or Network Variable Lists that allow for UDP communication between Codesys devices. CODESYS Group

Thanks Joe In case I have one sender device and two receivers in the same network, does it work?

Yes, it does. The sender NVLs can be setup to broadcast so that multiple receivers can get the same data update.

I can add 1 more comment about this topic. If you add 2 PLC in the same Codesys 3.5 project, you will see that you dont need to store the NVL file inside the Engineering PC. If you setup like this, and create sender and receiver NVL, it will be much more easier for you to establish the communicatio…

Hi Suleyman, Thanks for the tips, appreciate it! Cheers Cristian

Hi there, I’d like to test NVL between two PLCs belonging to the same Application. I have only one physical PLC, the second one is Virtual (Simulate Application) and I tried running both but It looks not working: I see the variable “A” in NVL Send on Physical PLC that is changing, but The same vari…

Communication between two PFC100

CODESYS

bjornidar March 29, 2026, 10:10pm 2

Hi, youl’ll find a discussion around this topic here

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Communication between two PFC100

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