Rockwell Automation 1769-SM2 Compact I/O DSI/Modbus Communication Module - Manual (Page 102)

6-22 MicroLogix 1500 Example Ladder Programs
The read message instruction on rung 0005 for PowerFlex 70 drive
Parameter 100 - [Jog Speed] is configured as follows:
The format of the command data is:
The format of the response data is:
For additional information about Modbus RTU Master messages for
PowerFlex 7-Class drives, refer to the 20-COMM-H Adapter User
Manual, publication 20COMM-UM009.
Data Word Example Value Description
N7:130 15 PowerFlex 70 node address
N7:131 3 Function Code – Read Holding Registers
N7:132 1099 Starting Register Address (41100)
N7:133 1 Number of registers to read
Data Word Example Value Description
N7:134 111 Parameter 100 read data