Rockwell Automation Publication 750-PM001N-EN-P - February 2017 17
Startup Chapter 1
Establishing A Connection With
EtherNet/IP
There are three methods for configuring the embedded EtherNet/IP adapter IP
address:
• Adapter Rotary Switches – Use the 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 adapter switches are read when the drive powers up, and
represent three decimal digits from top to bottom (see Figure 1
). If set to a
valid address (001…254), the adapter uses 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 there a gateway is not
configured. Also, the setting for adapter P36 [BOOTP] is automatically
ignored.
See Figure 1
and its accompanying table for all possible switch settings and
their related descriptions.
• BOOTP Server – Use BOOTP if you prefer to control the IP addresses of
the devices by using a server. The IP address, subnet mask, and gateway
addresses are provided by the BOOTP server.
• Adapter Parameters – Use adapter parameters when you want more
flexibility in IP address configuration, or must communicate outside the
control network by using a gateway. Use the adapter parameters to
configure the IP address, subnet mask, and gateway addresses.
The Status Indicator light-emitting diodes on the HIM cradle do not indicate the
status of an installed Communication Adapter option. If an optional Communication
Adapter is installed, refer to the option module user manual for a description of light-
emitting diode location and indication.
When using the adapter rotary switches, set the IP address before power is applied
because the adapter uses the IP address it detects when it first receives power.
Regardless of the method that is used to set the adapter IP address, each node on the
EtherNet/IP network must have a unique IP address. To change an IP address, you
must set the new value and then remove and reapply power to (or reset) the adapter.
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