Rockwell Automation 22-COMM-D DeviceNet Adapter - Manual (Page 52)

5-8 Using I/O Messaging
For the explicit message portion of this ladder example program, see
Figure 6.7 .
Figure 5.5 Example PLC-5 Ladder Logic Program (Continued)
The BTR in this rung moves the drive control data to the scanner from the N10: data file in
the PLC, where:
N10:0 = Scanner Control word
N10:1 = PowerFlex 40 (node 1) Logic Command
N10:2 = PowerFlex 40 (node 1) Reference
Note that the Reference for the PowerFlex 40 is set in Hz and not in engineering units like
other PowerFlex drives. For example, "300" equates to 30.0 Hz (the decimal point is always
implied).
The scanner then sends the data to the drive over the network.
0002
BT20:1
EN
EN
DN
ER
BTW
Block Transfer Write
Module Type 1771-SDN DeviceNet Scanner Module
Rack 000
Group 0
Module 0
Control Block BT20:1
Data File N10:0
Length 62
Continuous No
Setup Screen
BTW