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PLC Networking using VPN and Teletonika RMS Urgently needed

  • Posted:
  • Proposals: 6
  • Remote
  • #4293794
  • PRE-FUNDED
  • Expired
Muhammad H.Vitaly V.Rob M.Kieren B.Steve G. + 1 other have already sent a proposal.
  • 7

Description

Experience Level: Expert
Estimated project duration: Ongoing
Looking for urgent help but also long-term support for our projects.

We are working on a project that will need a number of PLCs to read data from each other over a large area, so we are trying to make to make it work with 4G and VPN.

To test this we have a test rig with 4 PLCs on it (Schneider M221), each connected to a Teletonika TRB140 4G gateway. We have configured a VPN using the Teletonika RMS VPN hub (OpenVPN).

I can log into each gateway and ping the local M221, as well as the others over the VPN network, ping times average 200ms.

I can ping each PLC from my PC using the OpenVPN client.

I can run read the data of each PLC using Modscan64, no packets are dropped.

When I connected one PLC to the other, they read the data from each other.

But I cannot get them to talk to each other over the VPN link.

I need long term support, so welcome those who can help urgently but would like a longer-term relationship as we have regular projects that need networking/OT/VPN support, and we like the Teletonika RMS solution.

UK based preferred.

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Clarification Board Ask a Question

  • Phil L.

    As a starting point, you could do with conducting an A B C check. Below is what A B C reflect

    'A' is your XXX which should be sending data to 'C'
    'C' is your XXX which should be receiving data from 'A'
    'B' is what the data should traverse over from 'A' to 'C'

    If you use something like WireShark, you can check if data being sent by A is visible on B? If not, it's a sending issue

    If data from A is visible on B, is the data hitting C? If not, it's a traversal issue with B

    Etc

    Let me know if you need a hand

    Device A data is actually

  • Wasantha G.

    Could you use a static route in your diagram to enable communication?

  • Wasantha G.


    Could there be a small configuration missing in your diagram to enable communication?

  • Wasantha G.

    As a network engineering student, would you like some guidance on how to enable communication between devices over the VPN link?