WAGO 750-830 Manual page 81

3.1.7.2 Commissioning with the WAGO BootP Server
An IP address and other parameters can be assigned to a coupler/controller in
a TCP/IP network using the Bootstrap protocol (BootP). Subnet masks and
gateways can also be transferred using this protocol.
Protocol communication comprises a client request and a server reply.
No IP address is available on commissioning of the controller. By default, the
BootP protocol is activated in the controller. A broadcast request will be
transmitted at Port 67 (BootP server) that contains the MAC address (MAC
ID) for the controller.
The BootP server then receives this message. The server contains a database
in which the MAC addresses and IP addresses are assigned to one another.
When a MAC address is found a broadcast reply is transmitted via network.
The coupler/controller "listens" at the specified Port 68 for a response from
the BootP server. Incoming packets contain information such as, the IP ad-
dress and the MAC address for the controller. The controller recognizes by the
MAC address that the message is intended for that particular controller and
accepts the transmitted IP address into its network.
The following steps are included:
• Noting the MAC ID and setting up of the fieldbus nodes (see Section
• Connecting of client PC and fieldbus nodes (see section 3.1.7.2.2)
• Determining IP addresses (see Section 3.1.7.2.3)
• Assigning IP addresses to the fieldbus nodes (see Section 3.1.7.2.4)
• Testing for proper functioning of the fieldbus nodes (see Section 3.1.7.2.5)
• Deactivating the BootP protocol (see Section 3.1.7.2.6)
3.1.7.2.1 Noting of the MAC ID and Set-Up of the Fieldbus Nodes
1. Before you set up the fieldbus node write down the MAC-ID of the
WAGO-I/O-SYSTEM 750
BACnet/IP Controller
3.1.7.2.1)
BACnet/IP controller. The MAC-ID is applied to the back of the fieldbus
controller, or on the self-adhesive peel-off strip on the side of the control-
ler.
MAC ID of fieldbus controller:
BACnet/IP Controller 750-830
Fieldbus Node Start-up
0 0 : 3 0 : D E : _ _ : _ _ : _ _
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