Rockwell Automation 5720 DriveLogix System - Manual (Page 169)

Publication 20D-UM002C-EN-P - November 2003
Communicating with Devices on a ControlNet Link 7-23
Example 1: Controlling remote devices
This example has DriveLogix1 controlling the I/O connected to the remote
1794-ACN15 module. The data the DriveLogix controller receives from the
remote I/O modules depends on how you configure the remote I/O modules.
You can configure each module as a direct connection or as rack optimized.
One chassis can have a combination of some modules configured as a direct
connection and others as rack optimized.
Example 1: Total connections required by DriveLogix1
The following table calculates the connections used in this example.
If you configured the remote I/O modules as rack-optimized, you would only
need a rack-optimized connection to the 1794-ACNR15, reducing the above
example by 3 connections.
Connection: Amount:
DriveLogix1 controller to 3 local I/O modules
rack-optimized connection for the DIN rail
direct connection for each I/O module
1
3
DriveLogix1 controller to remote 1794-ACNR15 1
DriveLogix1 to 4 remote I/O modules (through
1794-ACNR15)
all I/O modules configured as direct connection
no connection to the 1794-ACNR15
4
total connections used: 9