Technical data
186  •  Fieldbus Communication 
 ETHERNET 
 WAGO-I/O-SYSTEM 750 
BACnet/IP Controller 
The BOOTP Client allows for dynamic configuring of the network parame-
ters: 
Parameter  Meaning 
IP address of the client  Network address of the (programmable) fieldbus cou-
pler or controller 
IP address of the router  If communication is to take place outside of the local 
network, the IP address of the routers (gateway) is indi-
cated in this parameter. 
Subnet mask  The Subnet mask makes the (programmable) fieldbus 
coupler or controller able to differentiate, which parts of 
the IP address determine the network and which the 
network station. 
IP addresses of the DNS 
servers 
Here the IP addresses can be entered by maximally 2 
DNS servers. 
Host name  Name of the host 
When using the bootstrap protocol for configuring the node, the network pa-
rameters (IP address, etc... ) are stored in the EEPROM. 
Note 
The network configuration is only stored in the EEPROM when the BootP 
protocol is used, although not if configuration is done via DHCP. 
The BootP protocol is activated in the (programmable) fieldbus coupler or 
controller by default. 
When the BootP protocol is activated, the (programmable) fieldbus coupler or 
controller expects a BootP server to be permanently present. 
If, however, there is no BootP server available after a power-on reset, the net-
work remains inactive. 
To operate the (programmable) fieldbus coupler or controller with the IP con-
figuration stored in the EEPROM, you must first deactivate the BootP proto-
col. 
This is done via the web-based management system on the appropriate HTML 
page saved in the (programmable) fieldbus coupler or controller, which is ac-
cessed via the “Port” link. 
If the BootP protocol is deactivated, the (programmable) fieldbus coupler or 
controller uses the parameters stored in the EEPROM at the next boot cycle. 
If there is an error in the stored parameters, a blink code is output via the IO 
LED and configuration via BootP is automatically switched on. 










