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Interfaces for TCP/IP, Ethernet, RS-232, RS-485, USB, 20mA, glass and plastic fiber optic cable, http, SNMP, OPC, Modbus TCP, I/O digital, I/O analog, ISA, PCI

Application for the Web-IO Digital:

Configuring a UR 5 UMTS router for connecting the Web-IO over the cell phone network

In the router configuration shown here it makes no difference which Web-IO models are connected through the cellular phone network. Switching the digital signals of a Web-IO Digital is just as possible as sending alarm e-mails from the Web-Thermo-Hygrobarograph or a Web-IO Analog when limit values are exceeded.


Configuring the UMTS router

The SIM card for a cell phone service provider is required for operating this UMTS router. The SIM card is plugged into the slot provided in the router.

Even if the connected Web-IO needs to work later autonomously in its own "mini-network", the router must first be connected to a PC through the ETH port for basic configuration. The factory set IP address for the router is An IP address in the same subnet area must be assigned to the PC (only the number behind the last decimal point may differ).

After the router has been supplied with power, the configuration in the browser may begin. To do this, address is entered. Before you get to the configuration menu, you must first enter the user and password. The factory setting in both cases is "root".

To get unlimited access to the cell phone network, you must unlock the SIM card. This can be done under Administration >> Unlock SIM card by entering the PIN.


In the next step the basic network settings are made. This is possible under LAN configuration. To operate with Web-IOs, Enable DHCP server should be deactivated, since the Web-IOs must have fixed IPs within the private network in order to be reachable later from the Internet.


For the Web-IOs to be reachable in the private network from a browser, a DynDNA name must be created for the router access. This service is currently offered at http:/www.dyndns.org at no cost.


In the area Configuration >> DynDNS you can enter the host name, UserID and password for the DNS service.


The Web-IOs should be accessible from the Internet side through the browser. This means the corresponding NAT routes must be configured (area Configuration >> NAT).

In the private network both Web-IOs have IP addresses and The HTTP port for both is 80. To access from the Internet, the NAT router is configured such that the Web-IO can normally be accessed through Port 80 (browser entry: http://mywebio.selfip.com) and Web-IO through Port 81 (browser entry: http://mywebio.selfip.com:81).


Of course other services and Web-IOs can be added when expanding the private network.

Once all the entries have been saved, the router is ready to use.

Network parameters for the Web-IO

Lastly the IP address of the router as a gateway and DNS server need to be entered for the Web-IOs.


Once these parameters have been saved and the Web-IOs connected to the router, the UMTS link is complete.