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REX Ethernet Router

Industrial Remote Maintenance for Machines and Plants

Be well equipped for remote maintenance of PLCs, operator panels and other fieldbus devices with REX industrial routers. Log PLC variables to create small visualizations (widgets) and informative dashboards for yourself or your customers. Alarming functions warn you in time before the plant comes to a standstill.

Remote Maintenance Router for PLC Controllers with Ethernet and Profibus Interface


REX 100


VPN remote maintenance

Digital inputs and outputs for key switches or signal lamps

WEB2go
(Access visualizations, HMI's and PC's with the smartphone)

REX 200


Complete range of functions
of REX 100

More digital inputs and outputs

Faster processor for more data throughput

Data point server
(REX router can read data from PLC for alarming or visualization)

REX 250


Complete range of functions
of REX 100 and REX 200

Serial interface with adjustable protocol

Profibus Interface

myREX24 V2 - Commissioning and Management of REX Ethernet Routers



 

The Easy Way to Remotely Maintain your Industrial Routers

Request Account

1

Open the myREX24 server page v2.myrex24.net and click on the button "Register new account". After our verification of the data you will receive your access data by e-mail.

First Registration

2

Login to the myREX24 portal with your access data. A short tutorial on the user interface will guide you through the system. After a few seconds you can configure your first REX router.

Download VPN Client - shDIALUP

3

For the secured VPN connection to your REX routers, we provide you with the PC program shDIALUP. After the installation, start shDIALUP and log in to the myREX24 portal server with the already existing login data.

Failover - Integrated Cellular or WIFI Modem for Mobile Controls and Connection Critical Machines.


For each router series - REX 100, REX 200, REX 250 - different hardware equipment is available. For example, connection-critical production machines can be connected via Ethernet. In the event of a failure of the Ethernet connection, the fail-over mechanism causes the mobile modem to power up and the system remains accessible to the programmer via VPN.

„The routers are very scalable“, Marius Damm cites as the first argument and adds, „Unlike other providers, I can cover all transmission standards such as WAN or GSM with a single REX device.“


 Marius Damm, Deputy Head of Electrical Engineering, Wickert Maschinenbau GmbH

To the Success Story

REX Router: Our Industrial Router Series


REX 100 - Simple remote maintenance

  • Router without WAN interface: 4-port LAN switch (4G/WiFi)
  • Router with WAN interface: 3-port LAN switch (WAN)
  • USB interface for data carrier access and USB-Over-IP
  • 2 digital inputs/outputs for connection establishment, status display and alarming
  • Also available with LTE modem for use in North America "NAG version"

REX 200 – Extended Routing & Logging

  • Ethernet router for WAN, LTE and WiFi
  • REX 200 always have a WAN interface OnBoard
  • USB interface for data carrier access and USB-over-IP
  • 4 digital inputs/outputs for connection establishment, status display and alarming
  • Read, visualize, alarm and log data from PLCs
  • DHCP server, DNS server, Dyn DNS, NTP server, PPP server (DSL modem)

REX 200 – Extended Routing & Logging

  • Ethernet router for WAN, LTE and WiFi
  • REX 200 always have a WAN interface OnBoard
  • USB interface for data carrier access and USB-over-IP
  • 4 digital inputs/outputs for connection establishment, status display and alarming
  • Read, visualize, alarm and log data from PLCs
  • DHCP server, DNS server, Dyn DNS, NTP server, PPP server (DSL modem)

REX 250 - For PROFIBUS

  • Ethernet router for WAN, LTE and WiFi
  • REX 250 always have a WAN interface OnBoard
  • USB interface for data carrier access and USB-over-IP
  • 4 digital inputs/outputs for connection establishment, status display and alarming
  • Read, visualize, alarm and log data from PLCs
  • DHCP server, DNS server, Dyn DNS, NTP server, PPP server (DSL modem)
  • PROFIBUS interface
  • Serial interface (configurable RS485, RS232)

Safer and more efficient network topologies through microsegmentation in the factory network.




Fieldbus systems such as PROFINET have a high proportion of broadcast communication. Behind this are useful mechanisms for detecting fieldbus nodes. However, this data load is undesirable in the classic corporate network / factory network and can cause problems by overloading switches. REX Ethernet routers thus fulfill further useful tasks as gatekeepers (conduit) between two networks (zones) in addition to remote maintenance.

Small Firewall Settings with big Effect in the Network


  • NAT
    Prevents IP address collisions when connecting multiple series machines in the store floor area
  • Firewall
    MAC, IP and packet filters can be used to specifically restrict or release traffic.
  • Microsegmentation
    RRouters prevent network congestion by blocking broadcast and multicast telegrams (LLDP, DCP, etc.). Broadcast data traffic does not migrate into the company network.

myREX24 V2 - The Remote Maintenance Portal for Router Updates, Configuration and Connection Setup



The REX routers are designed for operation in interaction with the myREX24 V2 portal: The complete parameterization and remote maintenance is done via the portal. In addition to remote maintenance, the REX Routers can also read and visualize data from the PLC and generate alarms.

Learn more


First Steps - myREX24 V2 Portal Configuration and Commissioning of a REX Router



Success Stories: REX Industrial Router



Discover how our REX industrial routers and the myREX24 portal optimize our customers' machine communication and improve their maintenance processes. With customized solutions that we develop together, we support our customers in achieving their business goals by providing them with a reliable and secure remote access to their equipment. Explore our success stories and learn how you can benefit from the advantages of our solutions.

Success Story

Convenient Machine Communication

Remote access to Ethernet systems via a secure VPN tunnel has become widespread. However, many details determine how good and how practicable a corresponding solution actually is.

Read more
Success Story

Focus on Secure Remote Maintenance and Network Integration

To implement the remote and integration capability, two components from Helmholz were chosen: the REX 100 industrial router and the WALL IE industrial NAT gateway.

Read more
Success Story

REX and myREX24 - Industrial Routers from Helmholz make Mobile Cranes even better

Worldwide remote maintenance service is included with the mobile accessible industrial routers. They enable secure remote access to crane crane systems via a virtual server.

Read more

Facts and Figures - REX Ethernet Router

Learn more about technical data, technology, references and much more.

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