Rockwell Automation 22B PowerFlex 40 Custom Firmware Inst. - Option AF - Manual (Page 4)

Instructions
PowerFlex

40 Custom Firmware
“AF” Option - Modbus Function 16
The peripheral interface (DSI) used on the PowerFlex 40 drive supports
some of the Modbus function codes, such as:
This custom firmware option adds support for Modbus function code 16,
Write Multiple Registers. With this firmware option, Modbus function
16 can be used to write up to 32 parameter registers or up to 4 control
registers with one message per the Modbus specification.
16 (0x10) Write Multiple Registers
Table A Request Protocol Data Unit (PDU)
Modbus Function Code Command
03
Read Holding Registers
06 Preset (Write) Single Register
!
ATTENTION: The Custom Firmware supplied is designed for a
specific application and load condition. It differs from the standard
PowerFlex 40 product offering and must be installed and run only under
this custom application. Attempting to run this Custom Firmware under
any other type of application, could result in unpredictable and/or
hazardous conditions.
!
ATTENTION: This drive contains ESD (Electrostatic Discharge)
sensitive parts and assemblies. Static control precautions are required
when installing, testing, servicing or repairing this assembly.
Component damage may result if ESD control procedures are not
followed. If you are not familiar with static control procedures,
reference A-B publication 8000-4.5.2, “Guarding Against Electrostatic
Damage” or any other applicable ESD protection handbook.
Field Name Length Range
Function Code 1 Byte 0x10
Starting Address 2 Bytes 0x0000 to 0xFFFF
Quantity of Registers 2 Bytes 0x0001 to 0x0078
Byte Count 1 Byte 2 x N (1)
Register Values N (1) x 2 Bytes
(1) N = quantity of registers
values
Publication 22B-IN002A-EN-P – February, 2004 P/N 320901-P02
Copyright © 2004 Rockwell Automation, Inc. All rights reserved. Printed in USA.
PowerFlex is a registered trademark of Rockwell Automation, Inc.