User Documentation
6 2112220000/06/01.2021u-remote web server manual
4  Connecting and starting the web server
4.1  Installing the web server via USB
WARNING
Explosion risk!
 ▶ Prior to starting work, make sure that 
there is not a potentially explosive atmos-
phere!
ATTENTION
Risk of severe damage!
 ▶ Prior to connecting a PC, make sure that the u-remote 
station has been earthed properly!
First access to the web server has to be via the USB interface 
of the coupler (see section4.2). With couplers designed for 
the use with ethernet based bus systems – recognisable by 
the RJ45 sockets – the web server can be accessed alterna-
tively via Ethernet (see section5.7).
The USB port acts as an virtual DHCP Server. 
Please do not assign any IP addresses to other 
devices within the same subnet of the USB 
port (default 192.168.1.202, UR20-FBC-EIP: 
192.168.5.202), otherwise network failure might 
occur. 
The USB cable can be a maximum of 2m in 
length (Type USB-A to USB Micro-B e.g. Weidmül-
ler Order No. 1487980000). Extension cables 
must not be used.
Installing USB device drivers
The driver le is available on the Weidmüller website.
 ▶ Download the USB driver for the web server.
 ▶ Unpack the ZIP file.
Windows10
®
 ▶ Right-click on the usb8023.inf file and select Install.
 ▶ Confirm the dialogue with Yes.
 ▶ Right-click on the rndis.inf file and select Install.
 ▶ Confirm the dialogue with Yes.
The driver is being installed. 
After successful installation, a WI-UR20-FBC network adapter is 
displayed in the Device Manager.
Windows7
®
 or older
 ▶ To install the driver manually, open the Device Manager.
Under Other devices the USB CDC-RNDIS Network Interface interface 
is displayed.
New USB interface in the Device Manager
 ▶ Right-click on the interface and select Update driver 
software.
You will be asked how you would like to search for the driver 
software.
 ▶ Select the option Search for driver software on this 
computer.
Searching for installation files on the computer
 ▶ Click Browse and navigate to the folder in which you 
have stored both .inf files.
There could possibly be a security enquiry because the driver 
software does not have a signature. Nonetheless, continue 
with the installation.










