Modbus Tunneller


OPC Tunneller

OPC Bridge

OPC Data Logging

Modbus OPC Server

Modbus Tunneller

Modbus Database Logging

Web-Based HMI

Tunnel data from Modbus TCP devices across a network

With the DataHub Modbus Tunneller, connect any number of different Modbus TCP slave devices and easily share that data with other DataHub nodes across a network or Internet connection. A common use for the Modbus Tunneller is to share data between Modbus devices in one location with OPC/DDE or ODBC (database) clients in other locations, without having to deal with DCOM or Windows security permissions.


  • Private cloud ready
  • Eliminate the need for an OPC Server. The DataHub Tunneller includes the Modbus TCP interface needed to collect your data. You can then tunnel the data without having to convert it into OPC. This saves time and money as you don’t need to purchase an OPC Server to read from the Modbus devices
  • Reduces communication complexities
  • No need to perform protocol conversion until you connect to the client program on the other end of the tunnel
  • Supports SSL encryption for better security
  • Easy point-and-click configuration or XML file import
  • Supports asynchronous socket multiplexing in Modbus TCP to share one TCP connection with multiple Modbus devices
    • This eliminates cross coupling between client timeouts
    • Provides client timing independence
  • Use our built-in scripting tools to customize your installation and monitoring needs

What our customers are saying:

“We are very happy with the software. It’s stable and robust. A big plus for us is a high degree of confidence that prompt technical support is available when we need it.”

– Paraic McDonagh, Mirror Controls international, Ireland

As with most of our license packs, the Cogent DataHub® is also fully integrated with Skkynet’s SkkyHub™ service; an end-to-end solution that makes it easy to connect and network any number of industrial systems or data sources.

You can visualize real-time data with our built-in Web-based HMI – or your own, monitor or control your process or equipment from almost anywhere, and network any plant or remote system, with no additional hardware or programming necessary.

No open firewall ports, no VPNs to manage; secured by design.

Popular Add-ons:

  • DataHub WebView – build and display private cloud-based web pages.
  • Data Bridging – connect two or more data sources to share data in real time.
  • OPC A&E Support – connect to OPC A&E servers and clients.
  • OPC tunnel/Mirror – secure networking of OPC data without DCOM problems
  • DDE/Excel Support – connect to Excel spreadsheets and other DDE servers,
  • Email/SMS Notification – receive an email or SMS message based on data changes,
  • Data Historian – store and retrieve large volumes of data at high speeds,
  • Data Redundancy – hot standby switching between identical data sources,