Rockwell Automation 20-750-ENETR PowerFlexDual-Port EtherNet/IP Option Module - Manual (Page 20)

20 Rockwell Automation Publication 750COM-UM008A-EN-P - July 2012
Chapter 2 Installing the Option Module
Setting the Node Address There are four methods for configuring the option module node address:
• Node Address Switches — Use these switches when working on a simple,
isolated network (for example, 192.168.1.xxx) that has other products
with switches to set their IP addresses, does not need to be accessed from
outside the network, and you prefer a simplified node addressing method.
The three rotary switches are read when the drive powers up, and represent
three decimal digits from top to bottom (see
Figure 2 ). When set to a valid
address (001…254), the option module will use that value as the lower
octet of its IP address (192.168.1.xxx, where xxx = rotary switch settings),
along with a subnet mask of 255.255.255.0, and a gateway address of
0.0.0.0 when switches are set to 001, or a gateway address of 192.168.1.1
when switches are set from 002…254. Also, the setting for
Device
Parameter 05 - [Net Addr Sel] is automatically ignored.
See Figure 2 and its accompanying table for all possible switch settings and
their related descriptions.
• Option Module Parameters — Use option module parameters when you
want more flexibility in setting up the network node address, or need to
communicate outside the control network using a gateway. To use
parameters as the source for the IP address, the Node Address switches
must be set to a value other than 001…254 or 888, and
Device Parameter
05 - [Net Addr Sel] must be set to “1” (Parameters). The IP address,
subnet mask, and gateway address will then come from the values set using
the associated option module parameters. For details, see
Using Option
Module Parameters on page 36 .
• BOOTP — Use BOOTP when you want to configure a temporary IP
address, subnet mask, and gateway address for the option module using a
BOOTP server. To use BOOTP as the source for the IP address, the Node
Address switches must be set to a value other than 001…254 or 888, and
Device Parameter 05 - [Net Addr Sel] must be set to “2” (BOOTP).
Note the option module’s hardware Ethernet Address (MAC) on the
module’s data nameplate label located on the backside of the circuit board,
which will be used in step 7 when configuring the BOOTP server (see
Using a BOOTP or DHCP Server on page 32 for details).
IMPORTANT When using the Node Address switches, set the network node address
before power is applied because the option module uses the node
address it detects when it first receives power.
IMPORTANT If parameter values are invalid or the option module was not reset for
the values to take effect, the node address is established by using
DHCP.