Rockwell Automation Allen-Bradley 1794-IB16D - Select a Requested Packet Interval (RPI)

84 Rockwell Automation Publication 1794-UM061B-EN-P - March 2020
Chapter 7 Configure your Digital Module on an EtherNet/IP Network
working but is not required, especially when all connections appear to work
normally.
When you first install a Rockwell Automation EtherNet/IP module (right out of
the box), the module is BOOTP/DHCP enabled.
Set Up the Hardware
In this example, the Logix 5000 controller has an EtherNet/IP communication
module to connect to the EtherNet/IP network. The distributed (remote) I/O
has an EtherNet/IP adapter to connect it to the EtherNet/IP network.
The Logix 5000 controller can communicate with each I/O module directly
(direct connection). Or you can configure a rack-optimized connection to the
EtherNet/IP adapter to send data to any digital I/O modules.
Make sure:
• the IP addresses are set for each EtherNet/IP module
• all wiring and cabling is properly connected
• the communication driver (such as, AB-ETHIP-1) is configured for the
programming workstation
For more information on the Ethernet Adapter and FLEX I/O in an Ethernet
network, refer to publication ENET-UM006
.
Select a Requested Packet
Interval (RPI)
When you configure an I/O module, you define the requested packet interval
(RPI) rate for the module.
The RPI specifies the period at which data updates over a connection. For
example, an input module sends data to a controller at the RPI that you assign to
the module. Configure the RPI in milliseconds.
Local Chassis
Logix 5000 Controller
with EtherNet/IP
Communication Module
Distributed I/O
EtherNet/IP Adapter
with I/O Modules
Data
Switch
Programming
Terminal