Rockwell Automation 20-COMM-M Modbus/TCP Adapter - Manual (Page 25)

Configuring the Adapter 3-3
20-COMM-M Modbus/TCP Adapter User Manual
Publication 20COMM-UM014C-EN-P
Using BOOTP By default, the adapter is configured so that you can set its IP address,
subnet mask, and gateway address by using a BOOTP utility. You can select
from a variety of BOOTP utilities. These instructions use Rockwell’s
BOOTP Server (version 2.3 or higher), a stand-alone program that
incorporates the functionality of standard BOOTP utilities with a graphical
interface. It is available from
http://www.software.rockwell.com/support/
download/detail.cfm?ID=3390 . Refer to the Readme file and online Help
for detailed directions and information.
Configuring the Adapter Using BOOTP Server
1. On the adapter label, note the adapter’s hardware Ethernet Address
(MAC), which will be used in Step 6.
2. On a computer connected to the Modbus/TCP network, start the
BOOTP software. The BOOTP Server window ( Figure 3.1 ) appears.
Figure 3.1 BOOTP Server Window
3. To properly configure devices on your Modbus/TCP network, you must
configure settings in the BOOTP software to match the network. Select
Tools > Network Settings to display the Network Settings window
(
Figure 3.2 ).
TIP: If desired, you can disable BOOTP and configure the IP address,
subnet mask, and gateway address by setting parameters. For details, see
Setting the IP Address, Subnet Mask, and Gateway Address on page 3-6 .