Rockwell Automation 1747-L5xx SLC 500 Modular Hardware Style User Manual - Manual (Page 245)

Publication 1747-UM011G-EN-P - June 2008
Communicating with Devices on an Ethernet Network 245
The device will be added to the Relation List, displaying the
Ethernet Address (MAC) and corresponding IP Address, Subnet
Mask, and Gateway (if applicable).
Using DCHP Software To
Configure Your Processor DHCP software automatically assigns IP addresses to client stations
logging onto a TCP/IP network. DHCP is based on BOOTP and
maintains some backward compatibility. The main difference is that
BOOTP was designed for manual configuration, while DHCP allows
for dynamic allocation of network addresses and configurations to
newly attached devices.
Be cautious about using DHCP software to configure your SLC 5/05
processor. A BOOTP client can boot from a DHCP server only if the
DHCP server is specifically written to also handle BOOTP queries.
This is specific to the DHCP software package you use. Check with
your system administrator to see if your DHCP package supports
BOOTP commands and manual IP allocation.
ATTENTION
The processor must be assigned a fixed network address. The
IP address of the processor must not be dynamically provided.
Failure to observe this precaution may result in unintended
machine motion or loss of process control.