AXC 3050
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PHOENIX CONTACT 8686_en_01
4.4.4 Assigning the IP addresses using a BootP server
Bootstrap protocol
(BootP)
In an Ethernet network, BootP is used to assign an IP address to a BootP client using a
BootP server. For this example (AXC 3050 in the default settings), the AXC 3050 (BootP cli-
ent) sends a Boot_Request as a broadcast in the network via the Ethernet interface con-
nected to the network (X1, X2 or X3). The MAC address of the transmitter is sent with the
Boot_Request to provide unique identification. If the BootP server has been activated in
PC Worx, PC Worx responds with a Boot_Reply. PC Worx uses this Boot_Reply to inform
the AXC 3050 of its IP address and subnet mask. Please ensure that:
– The BootP server knows the MAC address sent by the BootP client.
– A corresponding IP address and subnet mask have been assigned in PC Worx for the
MAC address.
Once the IP data has been transferred to the AXC 3050 successfully, PC Worx sends a cor-
responding acknowledgment message.
Assigning IP settings To set the IP addresses in PC Worx, proceed as described below:
• Switch to the bus configuration workspace.
• Select the controller node (in the example: “AXC 3050”).
• Select the “IP Settings” tab in the “Device Details” window.
• Enter the MAC address(es) of the controller (seeFigure 4-7 on page 55).
Communication path and IP addresses/BootP
Please note:
– BootP is active by default on the controller.
– The IP addresses, which you assign here for the controller, are also transferred as a
respective IP address that can be selected in PC Worx via TCP/IP.
– After assigning the IP address, PC Worx automatically sets the connection via
TCP/IP as the communication path to the controller.
Assigning MAC and IP addresses
The MAC address printed on the device starting with “00.A0.45.”, (see item 1 in Figure 4-7
on page 55) should be assigned to the X1 Ethernet interface. In the case of further assign-
ments, refer to section 4.4.1 “MAC addresses of the AXC 3050” and 4.4.2 “Important
notes for IP address settings of AXC 3050” on Page 49.
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