Expected 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.
Impulsa Canales de Venta Online Category: Codex, Content Creation, Digital Marketing, ECommerce, Email Marketing, Prestashop, SEO, Shopify, Web Design, WooCommerce Budget: €9 - €14 EUR
25-Apr-2026 22:03 GMT
CAD Model of Mechanical Part Category: 3D CAD, 3D Design, 3D Drafting, 3D Modelling, 3D Printing, 3D Rendering, AutoCAD, CAD / CAM, Mechanical Engineering, Solidworks Budget: $750 - $1500 USD
Sales Focused Facebook Ads Category: Conversion Rate Optimization, Digital Marketing, Facebook Ads, Facebook Marketing, Google Adwords, Internet Marketing, Search Engine Marketing (SEM), Social Media Marketing Budget: £10 - £20 GBP
25-Apr-2026 21:55 GMT
Modern Patio Design Category: 3D Design, 3D Modelling, 3D Rendering, Architecture, Building Architecture, Building Design, Building Information Modeling, Graphic Design, Interior Design, Landscape Design Budget: $250 - $750 AUD
Third-Person Action Game Prototype Category: 3D Animation, 3D Modelling, Game Art, Game Design, Game Development, Game UI, IPhone, Mobile App Development Budget: $250 - $750 USD
25-Apr-2026 21:44 GMT
MEA CO₂ Process Optimization Category: Aspen HYSYS, Chemical Engineering, Data Analysis, Environmental Engineering, Process Simulation, Simulation, Thermodynamics Budget: $30 - $250 USD
