Rockwell Automation 20-COMM-M Modbus/TCP Adapter - Manual (Page 28)

3-6 Configuring the Adapter
20-COMM-M Modbus/TCP Adapter User Manual
Publication 20COMM-UM014C-EN-P
Setting the IP Address,
Subnet Mask, and Gateway
Address By default, the adapter is configured so that you set its IP address, subnet
mask, and gateway address using a BOOTP server. If you want to set these
attributes using the adapter parameters instead, you must disable BOOTP
and then set the appropriate parameters in the adapter.
Disabling the BOOTP Feature
1. Set the value of Parameter 03 - [BOOTP] to “0” (Disabled).
Figure 3.5 Example BOOTP LCD HIM Screen
2. Reset the adapter (see Resetting the Adapter on page 3-12 ).
After disabling the BOOTP feature, you can then configure the IP
address, subnet mask, and gateway address using adapter parameters.
Setting an IP Address Using Parameters
1. Verify that Parameter 03 - [BOOTP] is set to “0” (Disabled). This
parameter must be set to Disabled to configure the IP address using the
adapter parameters.
2. Set the value of Parameters 04 - [IP Addr Cfg 1] through 07 - [IP
Addr Cfg 4] to a unique IP address.
Figure 3.6 Example IP Addr Cfg 1 LCD HIM Screen
3. Reset the adapter (see Resetting the Adapter on page 3-12 ).
The NET A status indicator will be steady green or flashing green if the
IP address is correctly configured.
Value Setting
0 Disabled
1 Enabled (Default)
Port 5 Device
20-COMM-M
Parameter #: 03
BOOTP
0
Disabled
Port 5 Device
20-COMM-M
Parameter #: 04
IP Addr Cfg 1
0
0 <> 255
Default = 0.0.0.0 255 . 255 . 255 . 255
[IP Addr Cfg 1]
[IP Addr Cfg 2]
[IP Addr Cfg 3]
[IP Addr Cfg 4]