Rockwell Automation 1403-NDNET DeviceNet Communications Card Installation Instructions - Manual (Page 129)

Publication XXXX-X.X.X - Month Year
DeviceNet™ Communication Card Sample Ladder Listing C-3
Word M0:1.227
The class number is the first word of the transaction body; class 4 is
used to retrieve the real-time data assemblies.
Word M0:1.228
The instance number is the second word of the transaction body;
instance 11 is used to retrieve the real-time voltage, current, and
frequency metering information.
Word M0:1.229
The attribute number is the third word of the transaction body;
attribute 3 is used to get the metering information.
Sample Real Time Data Ladder Listing
This example ladder program shows a way to retrieve information
from the Powermonitor II using DeviceNet.
Service MAC ID
Service x 256 + MAC ID
14 x 256 + 5
3589
Class
4
Instance
11
Attribute
3