Rockwell Automation 1769-SM2 Compact I/O DSI/Modbus Communication Module - Manual (Page 87)

MicroLogix 1500 Example Ladder Programs 6-7
The read and write message instructions for PowerFlex 40 drive
Parameter 78 - [Jog Frequency] are configured as follows:
Single Mode Example Program Data Table
Integer File N7: is used to contain the input and output data to/from the
three channels of the module:
N7: Word
Description CH1 CH2 CH3
0 10 20 Reference
1 11 21 Feedback
2 12 22 Parameter 78 Write Value
3 13 23 Parameter 78 Read Value