Writing (06) logic command data, Writing (06) logic command data. . . . . . e-3, Modbus rtu protocol e-3 – Rockwell Automation 22C PowerFlex 400 AC Drive FRN 1.xx - 7.xx User Manual

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Modbus RTU Protocol

E-3

PowerFlex 400 Adjustable Frequency AC Drive FRN 1.xx - 7.xx User Manual

Publication 22C-UM001I-EN-P

Writing (06) Logic Command Data

The PowerFlex 400 drive can be controlled via the network by sending
Function Code 06 writes to register address 8192 (Logic Command).
P036 [Start Source] must be set to 5 “Comm Port” in order to accept the
commands. In addition to being written, register address 8192 can be
read using Function Code 03.

Logic Command

Address (Decimal)

Bit(s)

Description

8192

0

1 = Stop, 0 = Not Stop

1

1 = Start, 0 = Not Start

2

1 = Jog, 0 = No Jog

3

1 = Clear Faults, 0 = Not Clear Faults

5,4

00 = No Command

01 = Forward Command

10 = Reverse Command

11 = No Command

6

1 = Local Control

(1)

, 0 = Comm Control

(1)

Local Control causes the drive to use

C108

[Start Source 2] and

C109

[Speed Ref 2] for start and

speed reference control.

7

1 = MOP Increment, 0 = Not Increment

9,8

00 = No Command

01 = Accel Rate 1 Enable

10 = Accel Rate 2 Enable

11 = Hold Accel Rate Selected

11,10

00 = No Command

01 = Decel Rate 1 Enable

10 = Decel Rate 2 Enable

11 = Hold Decel Rate Selected

14,13,12

000 = No Command

001 = Freq. Source = P038 [Speed Reference]

010 = Freq. Source = A142 [Internal Freq]

011 = Freq. Source = Comms (Addr 8193)

100 = A143 [Preset Freq 0]

101 = A144 [Preset Freq 1]

110 = A145 [Preset Freq 2]

111 = A146 [Preset Freq 3]

15

1 = MOP Decrement, 0 = Not Decrement

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