Rockwell Automation 1403-NDNET DeviceNet Communications Card Installation Instructions - Manual (Page 130)

Publication XXXX-X.X.X - Month Year
C-4 DeviceNet™ Communication Card Sample Ladder Listing
These ladders are subject to change.
Rung-by-Rung Description
•
Rung 0000 - Turn on the DeviceNet scanner
•
Rung 0001 - Set the program latch bit
•
Rung 0002 - If the scanner's response queue is empty (I: 1/15 is
low), copy the Explicit Message Transfer Block header from File
N10:0 to the output file M0:1.224.
•
Rung 0003 - If the response queue is set (I:1/15 is high), data
was received. Then move the data from the input file M1:1.224
(Note; the length of the data file is determined by the amount of
data contained within the instance being returned) to a
temporary integer file N30:0.
ATTENTION
Proper operation of the ladder program is the
responsibility of the user. No warranty is expressed
or implied by using these ladder configurations.