Methods for IP Addressing
Original instructions
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Overview
Establish a standard procedure for assigning valid and unique IP addresses for each module and CPU on a network. The available methods are described below.
Addressing Methods
You can set the IP address for this advanced RTU module with its rotary switches, the Control Expert IP Configuration tab, or a combination of the two:
Address Method
Description
STORED
The lower rotary switch is set to STORED (manufacturer default setting), and the module uses the Control Expert application configured parameters.
device name (over DHCP)
There are two components of the device name:
  • default device name of the module, for example BMX_0200_xxy for a BMXNOR0200H module
  • numeric value from 00 to 159 set on the rotary switches
(For the default device name, xx is the value of the upper rotary switch and y is the value of the lower rotary switch.)
Example: For the RTU module, values of 120 (12 x 10) and 6 (6 x 1) on the respective upper and lower rotary switches indicate a value of 126. The value is appended to the default device name to create the valid DHCP device name (example: BMX_0200_126).
CLEAR IP
The lower rotary switch is set to CLEAR IP, and the module uses its MAC-based default IP address.
BOOTP
Set the lower rotary switch to one of its BOOTP positions to get an address over BOOTP (see note).
Note: To configure the module in the application to get its address from a BOOTP server, see "from a server," below.
from a server (STORED)
A server-assigned IP address can then be obtained from either a BOOTP or DHCP server.
BOOTP:
  • Set the lower rotary switch to one of its STORED positions.
  • Select From a server on the IP Configuration tab.
  • Leave the Device Name field empty.
DHCP:
  • Set the lower rotary switch to one of its STORED positions.
  • Select From a server on the IP Configuration tab.
  • Enter a valid device name in the Device Name field.
Note: The X80 Ethernet modules will not receive an IP address from a BOOTP/DHCP server on application download if the IP configuration has not changed.
disabled
Communications are disabled.
Note: A mismatch can occur when the assigned address is a mismatch for the address in the application.