Rockwell Automation 5720 DriveLogix System - Manual (Page 188)

Publication 20D-UM002C-EN-P - November 2003
8-8 Communicating with Devices on a DeviceNet Link
The rack-optimized connection creates a DINT element for mapped data for
each DeviceNet module connected to the card “dnet.” The array dnet:I.Data
contains the possible input elements; the dnet.O.Data contains the possible
output elements.
The index number on the array element refers to the same numbered word
mapped to the device in RSNetWorx for DeviceNet. Depending on the device,
there can be several words mapped to on device. You can create aliases to the
elements you actually use to more identify the data you need.