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Olga Weis Olga Weis Mar 25, 2021

PLC remote access with FlexiHub

Flexihub enables you to establish remote access to the PLC controller. It is a dedicated software solution that provides a simple method of accessing RS-232/485/422 and USB ports remotely.


Windows, macOS, Linux, Android 4.8 Rank based on 386+ Reviews
Share Serial over IP

Connecting to a PLC remotely

Programmable logic controllers are used along with other devices like operator interfaces (OITs) and human-machine interfaces (HMIs) in many Internet of Things (IoT) and industrial automation implementations. It is often beneficial to establish remote access to PLCs, but traditional methods of doing so present several issues. These solutions can be expensive, complex, and may introduce additional security weaknesses to an infrastructure.

PLC Internet Control

PLC Remote Access addresses and solves these connectivity issues by providing a simple and secure method of connecting to a controller remotely. The tool offers a streamlined method of managing a PLC with remote access and can quickly be configured to communicate with equipment in the field. It’s a great solution for establishing remote access PLC support from any network-connected location.


Windows, macOS, Linux, Android
4.8 Rank based on 386+ Reviews
FlexiHub is a simple solution to gain remote PLC access without the need for additional hardware or cabling.

This software tool gives remote access to PLCs and associated peripherals to support personnel located anywhere in the world. There are no requirements to reconfigure network settings or hardware. All data transfer is conducted using encryption to ensure secure communication.

Remotely configure PLCs and other equipment

Communication between a PLC and a computer is usually done using serial interfaces such as USB, RS-232, RS-422, or RS-485 and Ethernet protocols. The software required to interact with PLCs is accessed over a network connection. A PLC Internet connection enables a centralized server to communicate with any devices attached to the same network.

Remote PLC software virtualizes your computer’s serial connections and enables you to access serial-based devices attached to your network. It eliminates the need for a physical connection between the server and the equipment you wish to access and control.

How do I connect to a PLC remotely?

FlexiHub works for sharing serial or USB ports over any kind of IP-based networks such as a LAN, WAN, or the Internet.

Here’s how to connect to a PLC via the Internet using FlexiHub:

Register for a FlexiHub account which comes with a free demo period of the software so you can verify its functionality to access remote PLCs.
 Register a FlexiHub profile
Install FlexiHub on a physical computer or virtual machine that needs access to remotely located serial ports. Launch the app and sign into the FlexiHub account.
 Download Flexihub
Install FlexiHub on the machine that will be accessed remotely. Start the program and sign into FlexiHub using the same credentials used to log in to the other machines
 Serial device over IP
You are now able to connect remotely to the network-attached PLCs.

That’s all there is to it! FlexiHub is an efficient and effective method of remotely accessing and managing network-connected PLCs remotely.

Top choice
  • 4.8 overall rank based on 386+ Reviews
  • Windows, macOS, Linux, Android and Raspberry Pi. 10.4MB Size.
  • Version 6.0.14865. (31 May, 2023).