50 | RMC-100| 2105552MNAE 
 
If the device is configured for network communication (connected to the 
corporate network or the field network), a valid IP co
nfiguration for the field network must replace 
the factory IP configuration default.  Local access to devices on a network is still supported after 
the default configuration is replaced, but the operator laptop must have an IP configuration 
compatible with
 the non-default addresses assigned to the devices. See section 4.5 Configure 
Ethernet network communication
. 
4.2.2.1  Enable Ethernet 
Ethernet ports should be enabled if they are the preferred local connection option.  
This procedure requires local connection with the RMC using either the USB or MMI ports. Establish a 
connection per section 4.2.1 Using the USB port
, before you start this procedure. Skip this procedure 
if the Ethernet ports are already enabled. 
To enable Ethernet: 
1.  Launch PCCU and click Entry. The navigation tree displays.  
2.  Click View > Expert to display PCCU in Expert Mode. 
3.  Click Communications>Networking.  
4.  Select the State Enable checkbox (Figure 4-6
). 
5.  Click Send.  
6.  Click Restart. Click Yes to confirm restart. 
Figure 4-6: Enable Ethernet for local communication using default IP configuration 
4.2.2.2  Configure the host system  
If the laptop is configured to automatically obtain the IP address, do not change the TCP/IP 
configuration. If the laptop has a static TCP/IP configuration, configure it for dynamic IP addressing 
and private addressing (Figure 4-7). See Figure 4-8
 for Windows
® 
7 system examples.