Rockwell Automation 5720 DriveLogix System - Manual (Page 50)

Publication 20D-UM002C-EN-P - November 2003
2-16 What Is DriveLogix?
Connections to DeviceNet devices
In this example the controller uses two connections (one for status and one for
I/O) to communicate with the DeviceNet devices through the 1788-DNBO
module. The 1788-DNBO module uses a rack-optimized connection to the
DeviceNet devices.
The following table calculates the connections in this example.
The 1788-DNBO card does not establish connections to its devices; and
therefore, the controller does not establish connections with DeviceNet
devices. The 1788-DNBO module acts as a scanner that gathers all the data
from its devices and packs that data together into one image that is passed to
Connection: Amount:
DriveLogix controller to 3 local I/O modules
rack-optimized connection for the DIN rail
direct connection for one I/O module (slot 2)
1
1
DriveLogix controller to the 1788-DNBO DeviceNet
communication card
(1)
(1) DriveLogix controller connection to remote DeviceNet devices are accounted for in the 2 connections to the
1788-DNBO card.
2
DriveLogix controller to host PowerFlex 700S drive 1
total connections used: 5
PanelView 300
DeviceNet devices
DeviceNet
network
DriveLogix controller