50 Rockwell Automation Publication ENET-IN002H-EN-P - August 2017
Chapter 4 Set the Network IP Address
to see if a DHCP package supports BOOTP commands and manual IP
allocation.
Set the Network IP Address
with RSLinx Software or the
Studio 5000™ Environment
This table describes when to set the network IP address with RSLinx software or
the Studio 5000 environment.
Consider these factors when you determine how to set the network IP address:
• Network isolation from or integration into the plant/enterprise network
• Network size - For large networks, isolated networks, it can be more
convenient to use a BOOTP/DHCP server rather than the
Studio 5000 environment or RSLinx software. The BOOTP/DHCP
server also limits the possibility of assigning duplicate IP addresses.
• Company policies and procedures for plant-floor network installation and
maintenance
• Level of involvement by IT personnel in plant floor network installation
and maintenance
• Type of training that is offered to control engineers and maintenance
personnel
If you use the Rockwell Automation® BOOTP or DHCP server in an uplinked
subnet where an enterprise DHCP server exists, a module can get an address
from the enterprise server before the Rockwell Automation utility even sees the
module. You can disconnect from the uplink to set the address and configure the
module to retain its static address before reconnecting to the uplink. This is not a
problem if you have node names that are configured in the module and leave
DHCP enabled.
ATTENTION: The EtherNet/IP communication module must be assigned a
fixed network address. The IP address of this module must not be dynamically
provided.
Failure to observe this precaution can result in unintended machine motion or
loss of process control.
Conditions Software to Use Page
• A BOOTP server is not available.
• The EtherNet/IP communication module is connected to another
NetLinx network.
RSLinx 51
The Studio 5000® project is online with a controller that communicates to
or through the EtherNet/IP communication module.
Studio 5000 environment 53
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