Remote Maintenance

Do you need easy remote maintenance for your PLC? Then the REX product line is for you! Using the MYREX24 V2 Portal, you can get access to your equipment anytime and anywhere with completely secure OpenVPN access.

Not sure how to setup an OpenVPN – not a problem, because MYREX24 V2 Portal does it all for you!

The portal is managed by Helmholz and your account is free. All you have to do is purchase the REX router and the setup is done in a very short time.

 Visualization | Alarming | Logging


  • Secure OpenVPN remote maintenance access via myREX24 V2 portal
  • Integrated 3 or 4-port LAN switch
  • WAN, 3G, LTE or WiFi variants available
  • Digital inputs for establishing a connection and issuing alarms
  • Integrated firewall
  • Space-saving compact size
  • Supports all of the usual mobile communications standards and is downwards-compatible where network coverage isn’t present
  • USB-over-IP
  • Ethernet participants, such as PLC control systems, can be reached with the REX 100 industrial routers, irrespective of the manufacturer

The REX 100 routers are systematically designed to operate in conjunction with the myREX24 portal: All programming and remote maintenance is carried out exclusively through the portal. Data transmission takes place via an encrypted VPN tunnel on the basis of the secure OpenVPN protocol. With the digital inputs, alarms can be sent via the myREX24 V2 portal as SMS and e-mail. The USB host port, present in all devices, enables the connection of USB devices (e.g. programming port of a motor) via the remote maintenance tunnel (USB-over-IP).


  • Secure OpenVPN remote maintenance access via myREX24 V2 portal
  • Remote maintenance of PROFIBUS (RS232/RS485) and Ethernet-compatible devices (PROFINET-compatible)
  • Integrated 4-port LAN switch
  • Additional WAN interface also as a fallback for 3G, LTE, and WiFi devices
  • WAN, 3G, LTE or WiFi variants available
  • Data server for data access to SPS via RFC1006 (ISO on TCP), MPI, PROFIBUS, Modbus TCP/RTU, Allen Bradley, etc.
  • Directly connect S7-MPI/PROFIBUS devices
  • S7-MPI/PROFIBUS driver included
  • Integrated firewall
  • Series-over-IP and USB-over-IP

The compact REX 200/250 Ethernet routers are specially designed for use in an industrial environment. They enable reliable and secure remote maintenance of machines and systems over the internet. Thanks to the integrated Firewall, remote access is allowed only for authenticated users. The routers are also characterized by an integrated 4-port switch, as well as additional interfaces, such as series, PROFIBUS, and USB. The WAN interface, also integrated as a standard, enables a
fallback connection for 3G, LTE, and WiFi devices. The REX 250 routers make it possible to incorporate serial devices into your remote maintenance (Series-over-IP). The USB host port, present in all devices, enables the connection of USB devices
(e.g. programming port of a motor) via the remote maintenance tunnel (USB-over-IP).
In combination with the myREX24 V2 portal, the complete scope of  industrial routers with the functions of remote maintenance, visualization, WEB2go, alarm and logging of the PLC data is possible.

We offer training courses!

JCOM Automation Inc. offers high-quality, hands-on training. Our courses have a lot of labs, and we have all the latest equipment, including state of the art diagnostic equipment. We offer training on; PROFIBUS, PROFINET, Ethernet IP, Modbus TCP, Modbus RTU, and  HART. For a quote on a course, please contact us directly.

We are a certified training center for PROFIBUS PROFINET International for both PROFIBUS and PROFINET, which guarantees high-quality training.

Ready to get started?

Check out our course schedule, or get in touch

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